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Cook Islands Outlet, Plug & Voltage Guide for Travelers: Complete Edition ⚡

Cook Islands outlet, plug, and voltage guide for travelers

Planning a trip to the Cook Islands? You are headed for one of the dreamiest island destinations in the South Pacific.

The Cook Islands are the kind of place where travel feels warm, peaceful, blue, and beautifully unhurried — turquoise lagoons, palm-lined beaches, coral reefs, tiny motu islands, tropical gardens, beachfront resorts, snorkeling trips, lagoon cruises, local markets, island nights, and long sunny days where slowing down is part of the experience.

You might be staying on Rarotonga, exploring Avarua, relaxing beside Muri Lagoon, circling the island by scooter or bus, taking a lagoon cruise, snorkeling among tropical fish, flying to Aitutaki, visiting One Foot Island, staying in a beachfront bungalow, or building your entire trip around lagoons, beaches, Polynesian culture, and laid-back island life.

It is also the kind of trip where your phone, camera, power bank, laptop, tablet, Kindle, chargers, and other travel tech may be working hard — for photos, maps, accommodation confirmations, inter-island flights, lagoon cruise details, digital tickets, travel documents, and staying connected during long days away from your room.

And because the Cook Islands do not use the same outlet setup as many travelers have at home, your charging setup matters.

The Cook Islands use 240V electricity with a 50Hz frequency. The plug type used throughout the islands is Type I, the three-flat-pin plug style also used in New Zealand and Australia.

For many travelers, especially those coming from North America, the UK, Europe, or countries that use different plug shapes, a Cook Islands-compatible plug adapter is the easiest choice.

For travelers bringing single-voltage appliances, voltage matters too. A plug adapter fixes the shape.

It does not make the power safe for the wrong device.

That’s why this guide exists.

This is a complete, no-nonsense Cook Islands outlet, plug, and voltage guide with clear explanations and practical packing advice for travelers from around the world. Scroll to your country below for exactly what you need — no guessing, no surprises.

Tropical beach with white sand, palm trees, huts, and a person paddling a canoe on turquoise water
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⚡ Quick Overview: What You Need for the Cook Islands

✔ Plug Adapter

The Cook Islands use Type I outlets. If your home country uses a different plug shape, you will need an adapter.

Type I is the angled flat-pin plug style used in the Cook Islands, New Zealand, Australia, and several other South Pacific destinations. It usually has two flat angled pins, and grounded versions have a third flat pin.

The Cook Islands operate on 240V electricity with a 50Hz frequency.

✔ Dual-Voltage Electronics

Phones, laptops, tablets, cameras, power banks, Kindles, and most modern chargers labeled 100–240V are usually fine in the Cook Islands with the correct plug adapter.

In most cases, those do not need a voltage converter. The label on the charger is what matters.

✔ Single-Voltage Small Appliances (Converter Needed)

The Cook Islands use 240V electricity. If your device is labeled for only 110V, 120V, or 125V, it is not safe to use in the Cook Islands with only a plug adapter.

Hair dryers, curling irons, straighteners, steamers, heating pads, and other heat tools are the usual troublemakers.

For these, you need a step-down voltage converter, but the better travel solution is usually to bring a dual-voltage version or leave the appliance at home.

✔ Multi-Port USB Charger

This is one of those trips where a good charging setup can make travel feel much smoother. If you are charging a phone, watch, earbuds, power bank, camera batteries, tablet, Kindle, or laptop, a multi-port USB charger is worth packing.

✔ Travel Power Strip

A compact travel power strip can be very useful in the Cook Islands, especially if you are staying in resorts, beachfront bungalows, holiday homes, villas, guesthouses, apartments, older properties, or accommodations where outlets are not always placed exactly where you want them.

Just make sure it is rated for 100–240V use.

✔ Power Bank

A must for Rarotonga arrival days, island drives, scooter trips, Muri Lagoon cruises, snorkeling tours, beach days, Aitutaki flights, lagoon excursions, One Foot Island visits, local markets, hiking days, airport transfers, and any time you are relying on your phone for photos, maps, tickets, bookings, or communication.

✔ Electronics Organizer

Keeps your adapters, charging banks, cords, camera batteries, memory cards, earbuds, and small tech pieces from becoming a tangled mess in your bag.

Travel Hack:

A Cook Islands-compatible adapter + travel power strip + multi-port USB charger = an instant charging hub almost anywhere in the Cook Islands.

Cook Islands’ Electrical Basics

Plug Types Used:

Type I – Two flat angled pins in a V shape, with some grounded plugs having a third flat pin

The Cook Islands use 240V electricity with 50Hz frequency. The outlets use the same three-pin system found in New Zealand and Australia.

✔ Safe With Only an Adapter

These are usually fine if the charger or device is labeled 100–240V:

Phones
Laptops
Tablets
Cameras
Power banks
E-readers / Kindles
Bluetooth headphones / earbuds
Most modern USB chargers

Not Always Safe

Be careful with:

Hair dryers
Curling irons
Straighteners
Steamers
Heating pads
Electric kettles
Cheap or older chargers
Any device labeled for only one voltage

Because the Cook Islands use 240V power, single-voltage 110–120V appliances are the items most likely to cause problems for travelers from countries like the United States, Canada, Japan, Mexico, and parts of the Caribbean.

A plug adapter only changes the plug shape. It does not convert electricity.

Check the Voltage Label Before You Pack

Look at the small print on each charger or device:

“110V” or “120V only” → Not safe in the Cook Islands with only a plug adapter. You need a proper step-down voltage converter or a dual-voltage travel version of the appliance.

“220V,” “230V,” or “240V only” → Usually compatible with the Cook Islands’ voltage, but you still need the correct plug adapter if the plug shape does not match.

“100–240V” → Usually safe in the Cook Islands. You only need the correct plug adapter.

Frequency Note:

The 50Hz frequency is usually not a big deal for phones, laptops, tablets, cameras, and similar electronics. It can matter more for motor-based, clock-based, or heat-based appliances.

Consistency:

The Cook Islands are fairly straightforward for travelers because they mainly use Type I outlets with 240V / 50Hz electricity. The plug situation is much simpler than destinations that use several different outlet types.

That said, you still should not assume your plug will fit unless your home country also uses Type I outlets. Travelers from Australia and New Zealand usually have the easiest time because their plugs generally match the Cook Islands’ outlet shape. Travelers from North America, the UK, Europe, much of Asia, and many other regions will usually need a Type I plug adapter.

If you are staying in resorts, beachfront bungalows, villas, guesthouses, apartments, island lodges, older properties, or moving between Rarotonga, Aitutaki, Atiu, Mangaia, Mauke, Mitiaro, or the smaller islands, it is still smart to bring a flexible charging setup.

A Cook Islands-compatible plug adapter, a dual-voltage multi-port USB charger, and a power bank will cover most normal traveler needs.

If the Cook Islands are part of a larger South Pacific, Australia, or New Zealand trip, check each country on your itinerary before you leave. The Cook Islands’ Type I setup lines up well with Australia and New Zealand, but not every island destination uses the exact same outlet situation.

⚡ Quick Jump to Your Region

🌎 North America
🌎 Central America & Caribbean
🌎 South America
🌏 Oceania
🌍 Europe
🌏 Asia
🌍 Africa
✅ Universal Packing Checklist
🎒 Final Tips for the Cook Islands

🌎 North America

Political map of North America showing countries, major cities including capitals, mountain ranges, rivers, lakes, and surrounding oceans

🇺🇸 United States

Home: 120V, 60 Hz, Type A/B.

Vs. the Cook Islands: The Cook Islands use Type I outlets, with 240V electricity and 50Hz frequency. U.S. travelers should plan on needing a plug adapter. Standard U.S. Type A/B plugs will not fit the Cook Islands’ angled flat-pin Type I outlets.

Voltage is the bigger issue for U.S. travelers. The Cook Islands’ 240V power is much higher than standard U.S. household voltage, so single-voltage 120V appliances are not safe to use with only a plug adapter.

Phones, laptops, cameras, tablets, Kindles, power banks, and USB chargers are usually fine if they say 100–240V. Heat tools and older appliances need a careful label check.

What to pack:

🇨🇦 Canada

Home: 120V, 60 Hz, Type A/B.

Vs. the Cook Islands: The Cook Islands use Type I outlets, so Canadian travelers will need a plug adapter. Standard Canadian Type A/B plugs will not fit the Cook Islands’ angled flat-pin outlets.

The Cook Islands also use 240V electricity, while Canada uses 120V. That means single-voltage 120V appliances from Canada are not safe to use in the Cook Islands with only a plug adapter.

Phones, laptops, cameras, tablets, Kindles, power banks, and USB chargers are usually fine if they say 100–240V, but anything that heats up needs a careful voltage check before you pack it.

What to pack:

🇲🇽 Mexico

Home: 127V, 60 Hz, Type A/B; Type C may appear in limited cases.

Vs. the Cook Islands: The Cook Islands use Type I outlets. Standard Mexican Type A/B plugs will not fit the Cook Islands’ angled flat-pin outlets without an adapter.

Voltage also needs attention. Mexico commonly uses 127V electricity, while the Cook Islands use 240V. Single-voltage appliances from Mexico are not automatically safe in the Cook Islands with only a plug adapter.

Phones, laptops, cameras, tablets, Kindles, power banks, and USB chargers are usually fine if they say 100–240V. Heat tools, travel steamers, and older appliances need a careful label check.

What to pack:

🇬🇱 Greenland

Home: 220–230V, 50 Hz, Type C/E/F/K.

Vs. the Cook Islands: Greenland’s voltage and frequency are already close to the Cook Islands’ 240V / 50Hz electrical system, so voltage is usually less of a concern for travelers bringing modern electronics and appliances from Greenland.

The plug shape still needs attention. The Cook Islands use Type I outlets, which are different from Greenland’s Type C/E/F/K setup. Travelers from Greenland should bring a Type I plug adapter for the Cook Islands.

Because the Cook Islands are an island destination where travelers may move between resorts, beachfront bungalows, villas, guesthouses, island lodges, domestic flights, lagoon boats, and smaller properties, a flexible charging setup is still smart even though the voltage is similar.

What to pack:

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🌎 Central America & Caribbean

Political map of Central America and the Caribbean showing countries, major cities, and national borders

🔌 110–127V / 50–60 Hz Countries

⚠️ Voltage Check Required for Single-Voltage 110–120V Appliances

Travelers from these countries are used to lower voltage than the Cook Islands.

The Cook Islands use 240V electricity and 50Hz frequency, with Type I outlets.

➡️ Dual-voltage electronics are fine with an adapter only
➡️ Single-voltage hair tools may require a step-down voltage converter
➡️ Because the Cook Islands use Type I outlets, travelers from this region should pack a Cook Islands-compatible Type I adapter

🇧🇿 Belize

Home: 110V / 220V mix, 60 Hz, Type A/B/G.

Vs. the Cook Islands: The Cook Islands use Type I outlets, with 240V electricity and 50Hz frequency. If you are coming from a 110V area of Belize, the Cook Islands’ 240V power is not safe for single-voltage appliances with only a plug adapter.

If your device says 100–240V, you usually only need the correct adapter. If it says 110V only or 120V only, you need a step-down voltage converter or a dual-voltage travel version of the appliance.

What to pack:

💡 Dual-voltage devices 100–240V need an adapter only — no converter.

🇨🇷 Costa Rica

Home: 120V, 60 Hz, Type A/B.

Vs. the Cook Islands: The Cook Islands use Type I outlets, so Costa Rican travelers will need a plug adapter. Standard Type A/B plugs will not fit the Cook Islands’ angled flat-pin outlets.

Voltage is the bigger issue. Costa Rica uses 120V power, while the Cook Islands use 240V. Single-voltage 120V appliances are not safe in the Cook Islands with only a plug adapter.

Phones, laptops, tablets, cameras, and USB chargers are usually fine if they say 100–240V.

What to pack:

💡 Dual-voltage devices 100–240V need an adapter only — no converter.

🇸🇻 El Salvador

Home: 115V, 60 Hz, Type A/B.

Vs. the Cook Islands: The Cook Islands use Type I outlets. Travelers from El Salvador will need a plug adapter because standard Type A/B plugs will not fit the Cook Islands’ angled flat-pin outlets.

Because the Cook Islands use 240V electricity, single-voltage 115V appliances are not safe to use with only a plug adapter. Modern electronics are usually easy if the charger label says 100–240V.

What to pack:

💡 Dual-voltage devices 100–240V need an adapter only — no converter.

🇬🇹 Guatemala

Home: 120V, 60 Hz, Type A/B.

Vs. the Cook Islands: The Cook Islands use Type I outlets, so Guatemalan travelers will need a plug adapter. Standard Type A/B plugs will not fit the Cook Islands’ angled flat-pin outlets.

Voltage needs extra attention because Guatemala uses 120V power and the Cook Islands use 240V. Single-voltage 120V appliances are not safe in the Cook Islands with only an adapter. Be especially careful with anything that heats up.

What to pack:

💡 Dual-voltage devices 100–240V need an adapter only — no converter.

🇭🇳 Honduras

Home: 120V, 60 Hz, Type A/B.

Vs. the Cook Islands: The Cook Islands use Type I outlets, so Honduran travelers will need a plug adapter. Standard Type A/B plugs will not fit the Cook Islands’ angled flat-pin outlets.

Because the Cook Islands use 240V power, single-voltage 120V appliances from Honduras are not safe with only a plug adapter. Most phone, laptop, camera, and USB chargers are fine if they say 100–240V.

What to pack:

💡 Dual-voltage devices 100–240V need an adapter only — no converter.

🇳🇮 Nicaragua

Home: 120V, 60 Hz, Type A/B.

Vs. the Cook Islands: The Cook Islands use Type I outlets. Travelers from Nicaragua should pack a plug adapter because standard Type A/B plugs will not fit the Cook Islands’ angled flat-pin outlets.

Voltage is the bigger thing to check. Nicaragua uses 120V power, while the Cook Islands use 240V. Single-voltage 120V appliances require a step-down voltage converter or a dual-voltage travel version.

The frequency difference usually does not matter for modern electronics, but it can matter more for motorized or heat-based items.

What to pack:

💡 Dual-voltage devices 100–240V need an adapter only — no converter.

🇵🇦 Panama

Home: 120V, 60 Hz, Type A/B.

Vs. the Cook Islands: The Cook Islands use Type I outlets, so Panamanian travelers will need a plug adapter. Standard Type A/B plugs will not fit the Cook Islands’ angled flat-pin outlets.

Because the Cook Islands use 240V power, single-voltage 120V appliances are not safe with only an adapter. If your charger says 100–240V, it should be fine with the correct adapter.

What to pack:

💡 Dual-voltage devices 100–240V need an adapter only — no converter.

🇧🇸 Bahamas

Home: 120V, 60 Hz, Type A/B.

Vs. the Cook Islands: The Cook Islands use Type I outlets. Travelers from the Bahamas should bring a plug adapter because standard Type A/B plugs will not fit the Cook Islands’ angled flat-pin outlets.

Voltage needs attention because the Bahamas uses 120V power and the Cook Islands use 240V. Single-voltage 120V appliances need a step-down voltage converter or a dual-voltage replacement.

Modern dual-voltage electronics are usually fine with an adapter only.

What to pack:

💡 Dual-voltage devices 100–240V need an adapter only — no converter.

🇧🇧 Barbados

Home: 115V, 50 Hz, Type A/B.

Vs. the Cook Islands: The Cook Islands use Type I outlets, so travelers from Barbados will need a plug adapter.

The Cook Islands use 240V electricity, so single-voltage 115V appliances are not safe with only a plug adapter. Check hair tools carefully before packing them.

What to pack:

💡 Dual-voltage devices 100–240V need an adapter only — no converter.

🇨🇺 Cuba

Home: 110V / 220V mix, 60 Hz, Type A/B/C/L.

Vs. the Cook Islands: Cuba can have mixed voltage, but the Cook Islands are simpler on voltage: 240V electricity and 50Hz frequency. The Cook Islands use Type I outlets.

Travelers from Cuba should pack a Cook Islands-compatible plug adapter. If you are used to 110V areas, single-voltage appliances are not safe in the Cook Islands with only a plug adapter.

What to pack:

💡 Dual-voltage devices 100–240V need an adapter only — no converter.

🇩🇴 Dominican Republic

Home: 120V, 60 Hz, Type A/B/C.

Vs. the Cook Islands: The Cook Islands use Type I outlets. Travelers from the Dominican Republic should not assume a Type C plug will help in the Cook Islands because the islands’ outlets use the angled flat-pin Type I style.

Voltage is the bigger issue. The Dominican Republic uses 120V power, while the Cook Islands use 240V. Single-voltage 120V appliances are not safe in the Cook Islands with only a plug adapter.

Some Dominican plugs may physically resemble Type C, but that does not solve the voltage issue for single-voltage appliances.

What to pack:

💡 Dual-voltage devices 100–240V need an adapter only — no converter.

🇭🇹 Haiti

Home: 110V, 60 Hz, Type A/B.

Vs. the Cook Islands: The Cook Islands use Type I outlets, so travelers from Haiti will need a plug adapter. Standard Type A/B plugs will not fit the Cook Islands’ angled flat-pin outlets.

Because the Cook Islands use 240V electricity, single-voltage 110V appliances are not safe to use with only a plug adapter. Dual-voltage electronics are usually fine with the correct adapter.

What to pack:

💡 Dual-voltage devices 100–240V need an adapter only — no converter.

🇯🇲 Jamaica

Home: 110V, 50 Hz, Type A/B.

Vs. the Cook Islands: The Cook Islands use Type I outlets. Travelers from Jamaica should bring a plug adapter because standard Type A/B plugs will not fit the Cook Islands’ angled flat-pin outlets.

The Cook Islands use 240V electricity, so single-voltage 110V appliances are not safe with only a plug adapter. Check before using anything that heats up.

What to pack:

💡 Dual-voltage devices 100–240V need an adapter only — no converter.

🇹🇹 Trinidad and Tobago

Home: 115V, 60 Hz, Type A/B.

Vs. the Cook Islands: The Cook Islands use Type I outlets. Travelers from Trinidad and Tobago will need a plug adapter because standard Type A/B plugs will not fit the Cook Islands’ angled flat-pin outlets.

Because the Cook Islands use 240V power, single-voltage 115V appliances are not safe with only a plug adapter. Most modern electronics are fine if the label says 100–240V.

What to pack:

💡 Dual-voltage devices 100–240V need an adapter only — no converter.

🔌 220–240V / 50–60 Hz Countries

✅ Adapter Usually Needed — Voltage Is Usually Less of a Problem

If you’re coming from one of these countries, you are already used to higher-voltage power.

The Cook Islands use 240V / 50Hz, so voltage is usually simpler for travelers from 220–240V countries than it is for travelers from 110–127V countries.

➡️ You’ll usually need the right plug adapter
➡️ The Cook Islands use Type I outlets
➡️ A converter is usually not needed for modern electronics rated 100–240V
➡️ Appliances rated only for 230V or 240V are generally close to the Cook Islands’ voltage, but plug shape still matters

🇦🇬 Antigua and Barbuda

Home: 230V, 60 Hz, Type A/B.

Vs. the Cook Islands: Antigua and Barbuda uses higher-voltage power, so voltage is usually less of a concern in the Cook Islands than it is for travelers from 120V countries.

The plug shape is the bigger issue. The Cook Islands use Type I outlets, while Antigua and Barbuda commonly uses Type A/B plugs. You’ll need a plug adapter.

What to pack:

🇩🇲 Dominica

Home: 230V, 50 Hz, Type G.

Vs. the Cook Islands: Dominica’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the main problem.

The plug shape is the bigger issue. Dominica’s Type G plugs will not fit the Cook Islands’ Type I outlets without an adapter.

What to pack:

🇬🇩 Grenada

Home: 230V, 50 Hz, Type G.

Vs. the Cook Islands: Grenada’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz electrical system, so voltage is usually less of a concern.

Grenada uses Type G plugs, while the Cook Islands use Type I outlets. You’ll need a plug adapter.

What to pack:

🇰🇳 Saint Kitts and Nevis

Home: 230V, 60 Hz, Type A/B/G/D.

Vs. the Cook Islands: Saint Kitts and Nevis uses higher-voltage power, so voltage is usually less of an issue in the Cook Islands than it is for travelers from 120V countries.

The plug shape still needs attention. The Cook Islands use Type I outlets, so bring a Cook Islands-compatible plug adapter.

What to pack:

🇱🇨 Saint Lucia

Home: 240V, 50 Hz, Type A/B/G.

Vs. the Cook Islands: Saint Lucia uses 240V / 50Hz power, so voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup.

The plug shape is the bigger issue. The Cook Islands use Type I outlets, so travelers from Saint Lucia should pack a plug adapter.

What to pack:

🇻🇨 Saint Vincent and the Grenadines

Home: 230V, 50 Hz, Type A/B/G.

Vs. the Cook Islands: Saint Vincent and the Grenadines uses higher-voltage power, so voltage is usually not the main concern for the Cook Islands.

The outlet shape still matters. The Cook Islands use Type I outlets, so a Cook Islands-compatible plug adapter is the safest choice.

What to pack:

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🌎 South America

Physical map of South America showing countries, major cities, rivers, mountain ranges, and plateaus with bordering oceans

🔌 220–240V / 50–60 Hz Countries

✅ Adapter Usually Needed — Voltage Is Usually Less of a Problem

The Cook Islands use 240V electricity and 50Hz frequency, so travelers from many higher-voltage South American countries are already close to the Cook Islands’ electrical setup.

The main issue is usually plug shape.

➡️ You’ll usually need the right plug adapter
➡️ The Cook Islands use Type I outlets
➡️ A voltage converter is usually not needed for modern electronics labeled 100–240V
➡️ Appliances rated for 220–240V are usually compatible with the Cook Islands’ voltage, but the plug still has to fit

🇦🇷 Argentina

Home: 220V, 50 Hz, Type C/I.

Vs. the Cook Islands: Argentina’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the main issue for Argentine travelers.

The plug shape needs attention. Argentina uses Type C and Type I outlets. Type I plugs may fit the Cook Islands’ Type I outlets in some cases, but travelers should still bring a Cook Islands-compatible adapter for flexibility, especially if they are also bringing Type C plugs or a multi-country charging setup.

What to pack:

🇧🇴 Bolivia

Home: 230V, 50 Hz, Type A/C.

Vs. the Cook Islands: Bolivia’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the main issue for Bolivian travelers.

The plug shape is the bigger problem. The Cook Islands use Type I outlets, while Bolivia commonly uses Type A and Type C plugs. Bolivian travelers should bring a Cook Islands-compatible Type I plug adapter.

What to pack:

🇨🇱 Chile

Home: 220–230V, 50 Hz, Type C/L.

Vs. the Cook Islands: Chile’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually less of a concern.

The plug shape needs attention. The Cook Islands use Type I outlets, while Chile uses Type C and Type L. Chilean travelers should bring a Type I plug adapter for the Cook Islands.

What to pack:

🇵🇾 Paraguay

Home: 220V, 50 Hz, Type C.

Vs. the Cook Islands: Paraguay’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually straightforward.

The Cook Islands use Type I outlets, while Paraguay uses Type C. Paraguayan travelers will need a Type I plug adapter for the Cook Islands.

What to pack:

🇵🇪 Peru

Home: 220V, 60 Hz, Type A/B/C.

Vs. the Cook Islands: Peru’s voltage is close to the Cook Islands’ 240V power, so voltage is usually less of a concern for many devices.

Plug shape still matters. The Cook Islands use Type I outlets, while Peru uses Type A, Type B, and Type C. Peruvian travelers will need a Cook Islands-compatible plug adapter.

The frequency difference usually does not matter for phones, laptops, tablets, cameras, and modern chargers, but it can matter more for motor-based, clock-based, or heat-based appliances.

What to pack:

🇺🇾 Uruguay

Home: 220–230V, 50 Hz, Type C/F/I/L.

Vs. the Cook Islands: Uruguay’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually not the main issue.

The plug shape may vary. Uruguay uses Type C, Type F, Type I, and Type L plugs, while the Cook Islands use Type I outlets. Uruguayan Type I plugs may fit the Cook Islands’ outlets in some cases, but Type C, Type F, and Type L plugs will need an adapter.

Because the Cook Islands are often an island-hopping destination with resorts, beachfront bungalows, villas, domestic flights, lagoon boats, guesthouses, and smaller properties, a flexible adapter setup is still useful if you do not want to depend on every outlet matching your plug.

What to pack:

🔌 110–127V / 60 Hz or Mixed-Voltage Countries

⚠️ Voltage Check Required for Single-Voltage Appliances

The Cook Islands use 240V electricity, so travelers from lower-voltage South American countries need to be extra careful with single-voltage appliances.

Dual-voltage electronics labeled 100–240V only need an adapter.

Hair tools and other single-voltage appliances may require a converter if they are not compatible with the Cook Islands’ 240V power.

➡️ Plug adapter usually required
➡️ Step-down converter may be required for single-voltage 110–127V appliances
➡️ Check every charger and heat tool label before packing

🇧🇷 Brazil

Home: 127V / 220V mix, varies by region, 60 Hz, Type C/N.

Vs. the Cook Islands: Brazil has mixed voltage, while the Cook Islands use 240V. If you are coming from a 127V area of Brazil, single-voltage appliances are not safe in the Cook Islands with only a plug adapter.

Plug shape matters too. The Cook Islands use Type I outlets, while Brazil uses Type C and Type N. Brazilian travelers should bring a Cook Islands-compatible Type I adapter.

What to pack:

🇨🇴 Colombia

Home: 110V, 60 Hz, Type A/B.

Vs. the Cook Islands: Colombia uses lower-voltage power than the Cook Islands. The Cook Islands use 240V electricity, so single-voltage 110V appliances are not safe with only a plug adapter.

Colombian Type A/B plugs also will not fit the Cook Islands’ Type I outlets without an adapter.

Phones, laptops, tablets, cameras, and USB chargers are usually fine if they say 100–240V.

What to pack:

🇪🇨 Ecuador

Home: 120–127V, 60 Hz, Type A/B.

Vs. the Cook Islands: Ecuador uses lower-voltage power than the Cook Islands. The Cook Islands use 240V electricity, so single-voltage 120–127V appliances are not safe with only a plug adapter.

Ecuadorian Type A/B plugs will also need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇬🇾 Guyana

Home: 120V / 240V mix, 60 Hz, Type A/B/D/G.

Vs. the Cook Islands: Guyana has mixed voltage, while the Cook Islands use 240V. If your appliance is designed only for 120V, it is not safe in the Cook Islands with just a plug adapter.

The plug shape also needs attention. Guyana uses Type A, Type B, Type D, and Type G plugs, while the Cook Islands use Type I outlets. A Cook Islands-compatible Type I adapter is the easiest option.

What to pack:

🇸🇷 Suriname

Home: 127V, 60 Hz, Type A/B/C.

Vs. the Cook Islands: Suriname uses 127V power, while the Cook Islands use 240V. Single-voltage 127V appliances are not safe in the Cook Islands with only a plug adapter.

Plug shape also matters. The Cook Islands use Type I outlets, while Suriname uses Type A, Type B, and Type C. Surinamese travelers should bring a Type I plug adapter for the Cook Islands.

What to pack:

🇻🇪 Venezuela

Home: 120V, 60 Hz, Type A/B.

Vs. the Cook Islands: Venezuela uses lower-voltage power than the Cook Islands. The Cook Islands use 240V electricity, so single-voltage 120V appliances are not safe with only a plug adapter.

Venezuelan Type A/B plugs will also need an adapter for the Cook Islands’ Type I outlets. Dual-voltage electronics labeled 100–240V should be fine with the correct adapter.

What to pack:

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🌏 Oceania

Detailed map showing Australia, New Zealand, Papua New Guinea, and Pacific island nations including Fiji, Samoa, Tonga, Kiribati, and Solomon Islands with major cities and seas labeled

🔌 220–240V / 50 Hz Countries

✅ Adapter Usually Needed — Voltage Is Usually Less of a Problem

The Cook Islands use 240V electricity and 50Hz frequency, so travelers from many Oceania countries are already close to the Cook Islands’ electrical setup.

The main issue is usually plug shape.

➡️ You’ll usually need the correct plug adapter
➡️ The Cook Islands use Type I outlets
➡️ A voltage converter is usually not needed for modern electronics labeled 100–240V
➡️ Appliances rated for 220–240V are usually compatible with the Cook Islands’ voltage, but the plug still has to fit

🇦🇺 Australia

Home: 230V, often 240V in practice, 50 Hz, Type I.

Vs. the Cook Islands: Australia’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz electrical system, so voltage is usually not the main issue.

Australia uses Type I plugs, and the Cook Islands also use Type I outlets, so many Australian plugs may physically fit in the Cook Islands. Still, a small adapter or universal travel adapter can be useful if you are bringing mixed travel gear, multi-country adapters, or devices with non-Australian plugs.

What to pack:

🇫🇯 Fiji

Home: 240V, 50 Hz, Type I.

Vs. the Cook Islands: Fiji’s voltage and frequency match the Cook Islands’ 240V / 50Hz electrical system, so voltage is usually not a concern.

Fiji uses Type I plugs, and the Cook Islands also use Type I outlets, so standard Fijian plugs should fit without an adapter. A compact universal adapter may still be useful if you are carrying devices purchased in another country or continuing to destinations with different outlet types.

What to pack:

🇳🇿 New Zealand

Home: 230V, 50 Hz, Type I.

Vs. the Cook Islands: New Zealand’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually straightforward.

New Zealand uses Type I plugs, and the Cook Islands also use Type I outlets, so many New Zealand plugs may physically fit in the Cook Islands. A small adapter can still be useful if you are carrying travel gear from another region or a multi-country charging setup.

What to pack:

🇵🇬 Papua New Guinea

Home: 240V, 50 Hz, Type I.

Vs. the Cook Islands: Papua New Guinea’s voltage and frequency match the Cook Islands’ 240V / 50Hz system, so voltage is usually not the problem.

Papua New Guinea uses Type I plugs, and the Cook Islands also use Type I outlets, so many plugs may physically fit. If you are carrying devices from another country or a universal travel setup, a compact adapter can still be useful.

What to pack:

🇸🇧 Solomon Islands

Home: 220–230V, 50 Hz, Type I; some Type G.

Vs. the Cook Islands: Solomon Islands voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually less of a concern.

The Solomon Islands use Type I and some Type G plugs. Type I plugs may fit the Cook Islands’ outlets, but Type G plugs will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇹🇴 Tonga

Home: 240V, 50 Hz, Type I.

Vs. the Cook Islands: Tonga’s voltage and frequency match the Cook Islands’ 240V / 50Hz electrical system, so a voltage converter usually is not needed for modern dual-voltage electronics.

Tonga uses Type I plugs, and the Cook Islands also use Type I outlets, so many plugs may physically fit. A compact adapter can still be useful if you are carrying mixed travel gear from another region.

What to pack:

🇼🇸 Samoa

Home: 230V, 50 Hz, Type I.

Vs. the Cook Islands: Samoa’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the main issue.

Samoa uses Type I plugs, and the Cook Islands also use Type I outlets, so many plugs may physically fit. A compact adapter can still help if you are bringing devices from another country or a universal travel charging setup.

What to pack:

🇹🇻 Tuvalu

Home: 230V, 50 Hz, Type I.

Vs. the Cook Islands: Tuvalu’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz electrical system, so voltage is usually straightforward.

Tuvalu uses Type I plugs, and the Cook Islands also use Type I outlets, so many plugs may physically fit. If you are carrying mixed international devices, a compact adapter can still be useful.

What to pack:

🇻🇺 Vanuatu

Home: 220V, 50 Hz, Type I.

Vs. the Cook Islands: Vanuatu’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not an issue for compatible appliances and modern electronics.

Vanuatu uses Type I plugs, and the Cook Islands also use Type I outlets, so many plugs may physically fit. A small adapter may still be useful if you are traveling with mixed devices or a multi-country charging setup.

What to pack:

🇰🇮 Kiribati

Home: 240V, 50 Hz, Type I.

Vs. the Cook Islands: Kiribati’s voltage and frequency match the Cook Islands’ 240V / 50Hz setup, so a voltage converter usually is not needed for modern dual-voltage electronics.

Kiribati uses Type I plugs, and the Cook Islands also use Type I outlets, so many plugs may physically fit. A compact adapter may still be useful if you are carrying devices from another region.

What to pack:

🇳🇷 Nauru

Home: 240V, 50 Hz, Type I.

Vs. the Cook Islands: Nauru’s voltage and frequency match the Cook Islands’ 240V / 50Hz system, so voltage is usually not the main issue.

Nauru uses Type I plugs, and the Cook Islands also use Type I outlets, so many plugs may physically fit. A compact adapter can still be useful if you are using mixed international gear.

What to pack:

🇵🇫 French Polynesia

Home: 110V / 220V mix, 60 / 50 Hz, Type A/B/E.

Vs. the Cook Islands: French Polynesia is more mixed than the Cook Islands. The Cook Islands use 240V electricity, 50Hz frequency, and Type I outlets.

Travelers from French Polynesia should bring a plug adapter for the Cook Islands because Type A, Type B, and Type E plugs will not fit the Cook Islands’ Type I outlets.

Voltage depends on what your device is designed for. If you are coming from a 110V setup, single-voltage 110V appliances are not safe in the Cook Islands with only a plug adapter. If your device says 100–240V, you usually only need the correct adapter.

What to pack:

🔌 120V / 60 Hz Countries

⚠️ Voltage Check Required for Single-Voltage Appliances

The Cook Islands use 240V electricity, so travelers from 120V Oceania destinations need to check single-voltage appliances carefully.

Dual-voltage devices labeled 100–240V need only an adapter.

Hair tools and other single-voltage appliances may require a converter if they are not compatible with the Cook Islands’ 240V power.

➡️ Plug adapter usually required
➡️ Step-down converter may be required for single-voltage 120V appliances
➡️ Check every charger, hair tool, and heat appliance before packing

🇲🇭 Marshall Islands

Home: 120V, 60 Hz, Type A/B.

Vs. the Cook Islands: Marshall Islands travelers are used to lower-voltage power than the Cook Islands. The Cook Islands use 240V electricity, so single-voltage 120V appliances are not safe with only a plug adapter.

Type A/B plugs also will not fit the Cook Islands’ Type I outlets without an adapter.

What to pack:

🇫🇲 Micronesia

Home: 120V, 60 Hz, Type A/B.

Vs. the Cook Islands: Micronesian travelers are used to 120V power, while the Cook Islands use 240V. Single-voltage 120V appliances are not safe in the Cook Islands with only a plug adapter.

Micronesia’s Type A/B plugs will also need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇵🇼 Palau

Home: 120V, 60 Hz, Type A/B.

Vs. the Cook Islands: Palauan travelers are used to lower-voltage power than the Cook Islands. The Cook Islands use 240V electricity, so single-voltage 120V appliances need a step-down voltage converter or a dual-voltage replacement.

Palau’s Type A/B plugs will also need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇦🇸 American Samoa

Home: 120V, 60 Hz, Type A/B/F/I.

Vs. the Cook Islands: American Samoa uses lower-voltage power than the Cook Islands, so single-voltage 120V appliances are not safe in the Cook Islands with only a plug adapter.

The plug situation is mixed. American Samoa may use Type I plugs, which can work in the Cook Islands, but Type A, Type B, and Type F plugs will need an adapter for the Cook Islands’ Type I outlet setup. A flexible Cook Islands-compatible adapter setup is still useful.

What to pack:

↑ Back to Jump Menu

🌍 Europe

Political map of Europe showing country names and borders with surrounding seas and oceans labeled

🔌 220–240V / 50 Hz Countries

✅ Adapter Usually Needed — Voltage Is Usually Less of a Problem

The Cook Islands use 240V electricity and 50Hz frequency, so travelers from most European countries are already used to a similar voltage and frequency.

For Europe, the bigger issue is usually plug shape, not voltage.

➡️ You usually will not need a voltage converter for modern electronics labeled 100–240V
➡️ You may still need a plug adapter because the Cook Islands use Type I outlets
➡️ Type C, Type E, Type F, Type G, Type J, Type K, Type L, and other European plug shapes will usually need an adapter
➡️ Appliances rated for 220–240V are usually compatible with the Cook Islands’ voltage, but the plug still has to fit
➡️ A Cook Islands-compatible Type I adapter is the safest choice

🇦🇱 Albania

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Albania’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually not the issue.

The plug shape still needs attention. Albanian Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. A Cook Islands-compatible Type I adapter is still useful.

What to pack:

🇦🇩 Andorra

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Andorra’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually straightforward.

Andorra uses Type C and Type F plugs, while the Cook Islands use Type I outlets. Travelers from Andorra should bring a Cook Islands-compatible plug adapter.

What to pack:

🇦🇹 Austria

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Austria’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually not the issue.

The plug shape is the bigger thing to check. Austrian Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. Austrian travelers should bring a Cook Islands-compatible adapter.

What to pack:

🇧🇪 Belgium

Home: 230V, 50 Hz, Type C/E.

Vs. the Cook Islands: Belgium’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually simple.

Plug shape is the main thing to check. Belgian Type C and Type E plugs will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇧🇦 Bosnia and Herzegovina

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Bosnia and Herzegovina’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the issue.

The plug shape still matters. Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. Bring a Cook Islands-compatible adapter.

What to pack:

🇧🇬 Bulgaria

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Bulgaria’s voltage and frequency are close to the Cook Islands’ electrical system, so a voltage converter is usually not needed for modern electronics.

Plug shape is the bigger issue. Bulgarian Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. Pack a Cook Islands-compatible adapter.

What to pack:

🇭🇷 Croatia

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Croatia’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the issue.

Croatian Type C and Type F plugs will need an adapter for the Cook Islands’ Type I outlets. A Cook Islands-compatible adapter is the safest choice.

What to pack:

🇨🇿 Czechia

Home: 230V, 50 Hz, Type C/E/F.

Vs. the Cook Islands: Czechia’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually easy.

Plug shape may vary. Czech Type C, Type E, and Type F plugs will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇩🇰 Denmark

Home: 230V, 50 Hz, Type C/E/F/K.

Vs. the Cook Islands: Denmark’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually straightforward.

Danish Type C, Type E, Type F, and Type K plugs will need an adapter for the Cook Islands’ Type I outlets. A universal adapter with Cook Islands coverage is useful.

What to pack:

🇪🇪 Estonia

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Estonia’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system.

The plug shape still needs attention. Estonian Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. Pack a Cook Islands-compatible adapter.

What to pack:

🇫🇮 Finland

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Finland’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system.

Finnish Type C and Type F plugs will need an adapter for the Cook Islands’ Type I outlets. A Cook Islands-compatible plug adapter is the safest choice.

What to pack:

🇫🇷 France

Home: 230V, 50 Hz, Type C/E.

Vs. the Cook Islands: France’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not a major concern.

Plug shape is the thing to check. French Type C and Type E plugs will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇩🇪 Germany

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Germany’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually not the issue.

German Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. German travelers should bring a Cook Islands-compatible adapter.

What to pack:

🇬🇷 Greece

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Greece’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup.

Greek Type C and Type F plugs will need an adapter for the Cook Islands’ Type I outlets. A Cook Islands-compatible adapter gives you more flexibility.

What to pack:

🇭🇺 Hungary

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Hungary’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually not the issue for Hungarian travelers.

The plug shape is the bigger thing to check. Hungarian Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. Travelers from Hungary should bring a Cook Islands-compatible adapter.

What to pack:

🇮🇸 Iceland

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Iceland’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup.

Icelandic Type C and Type F plugs will need an adapter for the Cook Islands’ Type I outlets. Bring a Cook Islands-compatible plug adapter.

What to pack:

🇮🇪 Ireland

Home: 230V, 50 Hz, Type G.

Vs. the Cook Islands: Ireland’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the concern.

Ireland’s Type G plugs do not fit the Cook Islands’ Type I outlets without an adapter. Irish travelers should bring a Cook Islands-compatible plug adapter.

What to pack:

🇮🇹 Italy

Home: 230V, 50 Hz, Type C/F/L.

Vs. the Cook Islands: Italy’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually simple.

Italian Type C, Type F, and Type L plugs will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇱🇻 Latvia

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Latvia’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup.

Latvian Type C and Type F plugs will need an adapter for the Cook Islands’ Type I outlets. Pack a Cook Islands-compatible adapter.

What to pack:

🇱🇹 Lithuania

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Lithuania’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup.

Lithuanian Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. A Cook Islands-compatible adapter is the safest choice.

What to pack:

🇱🇺 Luxembourg

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Luxembourg’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup.

Luxembourg Type C and Type F plugs will need an adapter for the Cook Islands’ Type I outlets. Bring a Cook Islands-compatible adapter.

What to pack:

🇲🇹 Malta

Home: 230V, 50 Hz, Type G.

Vs. the Cook Islands: Malta’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually not the issue.

Malta’s Type G plugs do not fit the Cook Islands’ Type I outlets without an adapter. Travelers from Malta should bring a Cook Islands-compatible plug adapter.

What to pack:

🇲🇩 Moldova

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Moldova’s voltage and frequency are close to the Cook Islands’ electrical system.

Moldovan Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. Pack a Cook Islands-compatible adapter.

What to pack:

🇲🇨 Monaco

Home: 230V, 50 Hz, Type C/E/F.

Vs. the Cook Islands: Monaco’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the problem.

Monaco’s Type C, Type E, and Type F plugs will need an adapter for the Cook Islands’ Type I outlets. A universal adapter with Cook Islands coverage gives you the most flexibility.

What to pack:

🇲🇪 Montenegro

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Montenegro’s voltage and frequency are close to the Cook Islands’ electrical system.

Montenegrin Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. Bring a Cook Islands-compatible adapter.

What to pack:

🇳🇱 Netherlands

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: The Netherlands’ voltage and frequency are close to the Cook Islands’ 240V / 50Hz system.

Dutch Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. A Cook Islands-compatible plug adapter is useful.

What to pack:

🇲🇰 North Macedonia

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: North Macedonia’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system.

Travelers from North Macedonia will need an adapter because Type C and Type F plugs will not fit the Cook Islands’ Type I outlets. Bring a Cook Islands-compatible adapter.

What to pack:

🇳🇴 Norway

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Norway’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup.

Norwegian Type C and Type F plugs will not fit the Cook Islands’ Type I outlet setup. A Cook Islands-compatible adapter is the safest choice.

What to pack:

🇵🇱 Poland

Home: 230V, 50 Hz, Type C/E.

Vs. the Cook Islands: Poland’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually simple.

Polish Type C and Type E plugs will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇵🇹 Portugal

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Portugal’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system.

Portuguese Type C and Type F plugs will need an adapter for the Cook Islands’ Type I outlets. Pack a Cook Islands-compatible adapter.

What to pack:

🇷🇴 Romania

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Romania’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup.

Romanian Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. Bring a Cook Islands-compatible adapter.

What to pack:

🇷🇺 Russia

Home: 220–230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Russia’s voltage and frequency are generally close to the Cook Islands’ 240V / 50Hz setup.

Russian Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. Pack a Cook Islands-compatible plug adapter.

What to pack:

🇷🇸 Serbia

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Serbia’s voltage and frequency are close to the Cook Islands’ electrical system.

Serbian Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. Bring a Cook Islands-compatible adapter.

What to pack:

🇸🇰 Slovakia

Home: 230V, 50 Hz, Type C/E.

Vs. the Cook Islands: Slovakia’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually simple.

Slovak Type C and Type E plugs will need an adapter for the Cook Islands’ Type I outlets. A Cook Islands-compatible universal adapter gives you more flexibility.

What to pack:

🇸🇮 Slovenia

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Slovenia’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system.

Slovenian Type C and Type F plugs will need an adapter for the Cook Islands’ Type I outlets. Bring a Cook Islands-compatible adapter.

What to pack:

🇪🇸 Spain

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Spain’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup.

Spanish Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. Spanish travelers should pack a Cook Islands-compatible adapter.

What to pack:

🇸🇪 Sweden

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Sweden’s voltage and frequency are close to the Cook Islands’ electrical system.

Swedish Type C and Type F plugs will not fit the Cook Islands’ Type I outlet setup. A Cook Islands-compatible adapter is the safest choice.

What to pack:

🇨🇭 Switzerland

Home: 230V, 50 Hz, Type C/J.

Vs. the Cook Islands: Switzerland’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually simple.

Swiss Type C and Type J plugs will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇺🇦 Ukraine

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Ukraine’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup.

Ukrainian Type C and Type F plugs will need an adapter for the Cook Islands’ Type I outlets. Bring a Cook Islands-compatible plug adapter.

What to pack:

🇬🇧 United Kingdom

Home: 230V, 50 Hz, Type G.

Vs. the Cook Islands: The UK’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually not the issue.

UK Type G plugs do not fit the Cook Islands’ Type I outlets without an adapter. UK travelers should bring a Cook Islands-compatible plug adapter.

What to pack:

🇻🇦 Vatican City

Home: 230V, 50 Hz, Type C/F/L.

Vs. the Cook Islands: Vatican City’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually straightforward.

Vatican City Type C, Type F, and Type L plugs will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

↑ Back to Jump Menu

🌏 Asia

map of Asia

🔌 220–240V / 50–60 Hz Countries

✅ Adapter Usually Needed — Voltage Is Usually Less of a Problem

The Cook Islands use 240V electricity and 50Hz frequency, so travelers from many Asian countries are already used to similar voltage.

For most travelers in this group, the bigger issue is plug shape, not voltage.

➡️ You usually will not need a voltage converter for modern electronics labeled 100–240V
➡️ You may still need a plug adapter because the Cook Islands use Type I outlets
➡️ If your plug already matches Type I, you may be fine in some places, but outlet access and placement can still vary between resorts, villas, beachfront bungalows, apartments, guesthouses, older properties, island lodges, and regional accommodations
➡️ A Cook Islands-compatible Type I adapter is the safest choice

🇦🇫 Afghanistan

Home: 220V, 50 Hz, Type C/F.

Vs. the Cook Islands: Afghanistan’s voltage and frequency are generally close to the Cook Islands’ 240V / 50Hz system.

The plug shape still needs attention. Afghan Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. A Cook Islands-compatible adapter is the safest choice.

What to pack:

🇦🇲 Armenia

Home: 220V, 50 Hz, Type C/F.

Vs. the Cook Islands: Armenia’s voltage and frequency are generally close to the Cook Islands’ 240V / 50Hz system.

Armenian Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. Bring a Cook Islands-compatible adapter.

What to pack:

🇦🇿 Azerbaijan

Home: 220V, 50 Hz, Type C/F.

Vs. the Cook Islands: Azerbaijan’s voltage and frequency are generally close to the Cook Islands’ electrical system.

Azerbaijani Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. Pack a Cook Islands-compatible adapter.

What to pack:

🇧🇭 Bahrain

Home: 230V, 50 Hz, Type G.

Vs. the Cook Islands: Bahrain’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the concern.

Bahrain’s Type G plugs do not fit the Cook Islands’ Type I outlets without an adapter. Travelers from Bahrain should bring a Cook Islands-compatible plug adapter.

What to pack:

🇧🇩 Bangladesh

Home: 220–230V, 50 Hz, Type C/D/G/K.

Vs. the Cook Islands: Bangladesh’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually not the main issue.

Bangladeshi Type C, Type D, Type G, and Type K plugs will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇧🇹 Bhutan

Home: 230V, 50 Hz, Type C/D/G/M.

Vs. the Cook Islands: Bhutan’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually straightforward.

Bhutanese Type C, Type D, Type G, and Type M plugs will need an adapter for the Cook Islands’ Type I outlets. A Cook Islands-compatible adapter is still the easiest choice.

Most modern electronics should be fine if they say 100–240V.

What to pack:

🇧🇳 Brunei

Home: 240V, 50 Hz, Type G.

Vs. the Cook Islands: Brunei’s voltage and frequency match the Cook Islands’ 240V / 50Hz system, so voltage is usually not the issue.

Brunei’s Type G plugs do not fit the Cook Islands’ Type I outlets without an adapter. Bring a Cook Islands-compatible plug adapter.

What to pack:

🇰🇭 Cambodia

Home: 230V, 50 Hz, Type A/C/G.

Vs. the Cook Islands: Cambodia’s voltage and frequency are close to the Cook Islands’ system, so voltage is usually less of a concern.

Plug shape still matters. Cambodian Type A, Type C, and Type G plugs will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇨🇳 China

Home: 220V, 50 Hz, Type A/C/I.

Vs. the Cook Islands: China’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually straightforward.

China uses Type A, Type C, and Type I plugs. Chinese Type I plugs may fit the Cook Islands’ Type I outlets in some cases, but Type A and Type C plugs will need an adapter. A Cook Islands-compatible adapter is still useful for mixed travel gear.

What to pack:

🇨🇾 Cyprus

Home: 230V, 50 Hz, Type G.

Vs. the Cook Islands: Cyprus’ voltage and frequency are close to the Cook Islands’ 240V / 50Hz electrical system, so voltage is usually not the problem.

Cyprus uses Type G plugs. Type G plugs will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇬🇪 Georgia

Home: 220V, 50 Hz, Type C/F.

Vs. the Cook Islands: Georgia’s voltage and frequency are generally close to the Cook Islands.

Georgian Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. Bring a Cook Islands-compatible adapter.

What to pack:

🇮🇳 India

Home: 230V, 50 Hz, Type C/D/M.

Vs. the Cook Islands: India’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually less of a concern.

Indian Type C, Type D, and Type M plugs will need an adapter for the Cook Islands’ Type I outlets. A Cook Islands-compatible adapter is still useful.

What to pack:

🇮🇩 Indonesia

Home: 220V, 50 Hz, Type C/F.

Vs. the Cook Islands: Indonesia’s voltage and frequency are generally close to the Cook Islands.

Indonesian Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. Pack a Cook Islands-compatible adapter.

What to pack:

🇮🇷 Iran

Home: 220V, 50 Hz, Type C/F.

Vs. the Cook Islands: Iran’s voltage and frequency are generally close to the Cook Islands.

Iranian Type C and Type F plugs will not fit the Cook Islands’ Type I outlet setup.

Modern electronics labeled 100–240V should be easy with the right plug setup.

What to pack:

🇮🇶 Iraq

Home: 230V, 50 Hz, Type C/D/G.

Vs. the Cook Islands: Iraq’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually less of a concern.

Iraqi Type C, Type D, and Type G plugs will need an adapter for the Cook Islands’ Type I outlet setup.

What to pack:

🇮🇱 Israel

Home: 230V, 50 Hz, Type C/H.

Vs. the Cook Islands: Israel’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually not the issue.

Israeli Type C and Type H plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇯🇴 Jordan

Home: 230V, 50 Hz, Type C/F/G.

Vs. the Cook Islands: Jordan’s voltage and frequency are close to the Cook Islands’ system, so voltage is usually straightforward.

Jordanian Type C, Type F, and Type G plugs will need an adapter for the Cook Islands’ Type I outlet setup.

What to pack:

🇰🇿 Kazakhstan

Home: 220V, 50 Hz, Type C/F.

Vs. the Cook Islands: Kazakhstan’s voltage and frequency are generally close to the Cook Islands.

Kazakh Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. Pack a Cook Islands-compatible adapter.

What to pack:

🇰🇼 Kuwait

Home: 240V, 50 Hz, Type G.

Vs. the Cook Islands: Kuwait’s voltage and frequency match the Cook Islands’ 240V / 50Hz electrical system, so voltage is usually not the issue.

Kuwait’s Type G plugs do not fit the Cook Islands’ Type I outlets without an adapter. Travelers from Kuwait should bring a Cook Islands-compatible plug adapter.

What to pack:

🇰🇬 Kyrgyzstan

Home: 220V, 50 Hz, Type C/F.

Vs. the Cook Islands: Kyrgyzstan’s voltage and frequency are generally close to the Cook Islands.

Kyrgyz Type C and Type F plugs will not fit the Cook Islands’ Type I outlet setup.

Most modern dual-voltage electronics should be fine with the right adapter.

What to pack:

🇱🇦 Laos

Home: 230V, 50 Hz, Type A/B/C/E/F.

Vs. the Cook Islands: Laos has several plug types, and the Cook Islands use Type I outlets.

Type A, Type B, Type C, Type E, and Type F plugs will need an adapter for the Cook Islands’ Type I outlet setup.

What to pack:

🇱🇧 Lebanon

Home: 230V, 50 Hz, Type C/F/G.

Vs. the Cook Islands: Lebanon’s voltage and frequency are close to the Cook Islands’ electrical setup, so voltage is usually simple.

Lebanese Type C, Type F, and Type G plugs will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇲🇾 Malaysia

Home: 240V, 50 Hz, Type G.

Vs. the Cook Islands: Malaysia’s voltage and frequency match the Cook Islands’ 240V / 50Hz system, so voltage is usually not a major concern.

Malaysia’s Type G plugs do not fit the Cook Islands’ Type I outlets without an adapter. Bring a Cook Islands-compatible plug adapter.

What to pack:

🇲🇻 Maldives

Home: 230V, 50 Hz, Type G.

Vs. the Cook Islands: The Maldives’ voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the issue.

Maldivian Type G plugs need an adapter for the Cook Islands’ Type I outlets. A universal adapter with Cook Islands coverage is the easiest choice.

What to pack:

🇲🇳 Mongolia

Home: 220V, 50 Hz, Type C/E.

Vs. the Cook Islands: Mongolia’s voltage and frequency are close to the Cook Islands’ electrical system, so voltage is usually simple.

Mongolian Type C and Type E plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇲🇲 Myanmar

Home: 230V, 50 Hz, Type A/B/C/D/G.

Vs. the Cook Islands: Myanmar has several plug types, while the Cook Islands use Type I outlets.

Myanmar Type A, Type B, Type C, Type D, and Type G plugs will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇳🇵 Nepal

Home: 230V, 50 Hz, Type C/D/M.

Vs. the Cook Islands: Nepal’s voltage and frequency are close to the Cook Islands’ electrical setup, so voltage is usually easy.

Nepali Type C, Type D, and Type M plugs will need an adapter for the Cook Islands’ Type I outlets.

Modern dual-voltage electronics should be simple with the right adapter.

What to pack:

🇴🇲 Oman

Home: 240V, 50 Hz, Type G.

Vs. the Cook Islands: Oman’s voltage and frequency match the Cook Islands’ 240V / 50Hz system, so voltage is usually not the main issue.

Oman’s Type G plugs do not fit the Cook Islands’ Type I outlets without an adapter. Bring a Cook Islands-compatible plug adapter.

What to pack:

🇵🇰 Pakistan

Home: 230V, 50 Hz, Type C/D/M.

Vs. the Cook Islands: Pakistan’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually straightforward.

Pakistani Type C, Type D, and Type M plugs will need an adapter for the Cook Islands’ Type I outlets. A Cook Islands-compatible adapter gives you the most flexibility.

What to pack:

🇵🇭 Philippines

Home: 220V, 60 Hz, Type A/B/C.

Vs. the Cook Islands: The Philippines’ voltage is close to the Cook Islands’ 240V power, so voltage is usually less of a concern for many devices.

Philippine Type A, Type B, and Type C plugs need an adapter for the Cook Islands’ Type I outlets.

The frequency difference usually matters more for motorized, clock-based, or heat-based devices than for modern electronics.

What to pack:

🇶🇦 Qatar

Home: 240V, 50 Hz, Type G.

Vs. the Cook Islands: Qatar’s voltage and frequency match the Cook Islands’ electrical setup, so voltage is usually not the concern.

Qatar’s Type G plugs do not fit the Cook Islands’ Type I outlets without an adapter. Travelers from Qatar should bring a Cook Islands-compatible plug adapter.

What to pack:

🇸🇦 Saudi Arabia

Home: 220–240V, 60 Hz, Type G.

Vs. the Cook Islands: Saudi Arabia’s voltage is close to the Cook Islands’ 240V power, so voltage is usually not the main issue.

Saudi Arabia’s Type G plugs will need an adapter for the Cook Islands’ Type I outlets. The frequency difference usually does not matter for modern electronics, but it can matter more for motorized, clock-based, or heat-based devices.

What to pack:

🇸🇬 Singapore

Home: 230V, 50 Hz, Type G.

Vs. the Cook Islands: Singapore’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually simple.

Singapore’s Type G plugs do not fit the Cook Islands’ Type I outlets without an adapter. Bring a Cook Islands-compatible plug adapter.

What to pack:

🇰🇷 South Korea

Home: 220V, 60 Hz, Type C/F.

Vs. the Cook Islands: South Korea’s voltage is close to the Cook Islands’ 240V power, so voltage is usually less of an issue.

South Korean Type C and Type F plugs will need an adapter for the Cook Islands’ Type I outlets. The frequency difference is usually fine for modern electronics, but check motorized or clock-based devices carefully.

What to pack:

🇱🇰 Sri Lanka

Home: 230V, 50 Hz, Type D/G/M.

Vs. the Cook Islands: Sri Lanka’s voltage and frequency are close to the Cook Islands’ system, so voltage is usually not the problem.

Sri Lanka’s Type D, Type G, and Type M plugs need an adapter for the Cook Islands’ Type I outlets. A Cook Islands-compatible adapter gives you the most flexibility.

What to pack:

🇸🇾 Syria

Home: 220V, 50 Hz, Type C/E/L.

Vs. the Cook Islands: Syria’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually straightforward.

Syrian Type C, Type E, and Type L plugs will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇹🇯 Tajikistan

Home: 220V, 50 Hz, Type C/F.

Vs. the Cook Islands: Tajikistan’s voltage and frequency are generally close to the Cook Islands.

Tajik Type C and Type F plugs will not fit the Cook Islands’ Type I outlet setup.

What to pack:

🇹🇭 Thailand

Home: 220–230V, 50 Hz, Type A/B/C/F/O.

Vs. the Cook Islands: Thailand’s voltage and frequency are close to the Cook Islands’ electrical setup, so voltage is usually not the issue.

Thai Type A, Type B, Type C, Type F, and Type O plugs will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇹🇱 Timor-Leste

Home: 220V, 50 Hz, Type C/F/I.

Vs. the Cook Islands: Timor-Leste’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually simple.

Timor-Leste Type I plugs may fit the Cook Islands’ Type I outlets in some cases, but Type C and Type F plugs will need an adapter. Most modern electronics should be fine if labeled 100–240V.

What to pack:

🇹🇷 Turkey

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Turkey’s voltage and frequency are generally close to the Cook Islands.

Turkish Type C and Type F plugs will not fit the Cook Islands’ Type I outlet setup. A universal adapter with Cook Islands coverage can still be useful if you are moving between Rarotonga, Aitutaki, Atiu, Mangaia, resorts, beachfront bungalows, apartments, older properties, and smaller island stays.

What to pack:

🇹🇲 Turkmenistan

Home: 220V, 50 Hz, Type C/F.

Vs. the Cook Islands: Turkmenistan’s voltage and frequency are generally close to the Cook Islands.

Turkmen Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter.

What to pack:

🇦🇪 United Arab Emirates

Home: 220–240V, 50 Hz, Type G.

Vs. the Cook Islands: UAE voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the issue.

UAE Type G plugs do not fit the Cook Islands’ Type I outlets without an adapter. Travelers from the UAE should bring a plug adapter.

What to pack:

🇺🇿 Uzbekistan

Home: 220V, 50 Hz, Type C/F.

Vs. the Cook Islands: Uzbekistan’s voltage and frequency are generally close to the Cook Islands.

Uzbek Type C and Type F plugs will not fit the Cook Islands’ Type I outlet setup.

Modern dual-voltage electronics are usually simple with the right adapter.

What to pack:

🇻🇳 Vietnam

Home: 220V, 50 Hz, Type A/C/F.

Vs. the Cook Islands: Vietnam’s voltage and frequency are close to the Cook Islands’ electrical system, so voltage is usually straightforward.

Vietnamese Type A, Type C, and Type F plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇾🇪 Yemen

Home: 230V, 50 Hz, Type A/C/D/G.

Vs. the Cook Islands: Yemen’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually not the main concern.

Yemeni Type A, Type C, Type D, and Type G plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🔌 100–120V Countries

⚠️ Voltage Check Required for Single-Voltage Appliances

The Cook Islands use 240V electricity, so travelers from 100–120V countries need to be extra careful with single-voltage appliances.

Dual-voltage devices labeled 100–240V need only an adapter.

Hair tools and other single-voltage appliances may require a converter if they are not compatible with the Cook Islands’ 240V power.

➡️ Plug adapter usually required
➡️ Step-down converter may be required for single-voltage 100–120V appliances
➡️ Check every charger, hair tool, and heat appliance before packing

🇯🇵 Japan

Home: 100V, 50/60 Hz, Type A/B.

Vs. the Cook Islands: Japan uses much lower voltage than the Cook Islands. The Cook Islands use 240V electricity, so single-voltage 100V appliances are not safe in the Cook Islands with only a plug adapter.

Japanese Type A/B plugs will also need an adapter for the Cook Islands’ Type I outlets. Dual-voltage electronics labeled 100–240V are usually fine with the correct adapter.

What to pack:

🇹🇼 Taiwan

Home: 110V, 60 Hz, Type A/B.

Vs. the Cook Islands: Taiwan uses lower-voltage power than the Cook Islands. The Cook Islands use 240V electricity, so single-voltage 110V appliances are not safe with only a plug adapter.

Taiwan’s Type A/B plugs will also need an adapter for the Cook Islands’ Type I outlets. Phones, laptops, tablets, cameras, and USB chargers are usually fine if they say 100–240V.

What to pack:

↑ Back to Jump Menu

🌍 Africa

map of Africa

🔌 220–240V / 50 Hz Countries

✅ Adapter Usually Needed — Voltage Is Usually Less of a Problem

The Cook Islands use 240V electricity and 50Hz frequency, so travelers from many African countries are already used to similar voltage.

For most travelers in this group, the bigger issue is plug shape, not voltage.

➡️ You usually will not need a voltage converter for modern electronics labeled 100–240V
➡️ You may still need a plug adapter because the Cook Islands use Type I outlets
➡️ If your plug already matches Type I, you may be fine in some places, but outlet access and placement can still vary between resorts, villas, beachfront bungalows, apartments, guesthouses, older properties, island lodges, and regional accommodations
➡️ A Cook Islands-compatible Type I adapter is the safest choice

🇩🇿 Algeria

Home: 230V, 50 Hz, Type C/F.

Vs. the Cook Islands: Algeria’s voltage and frequency are generally close to the Cook Islands’ 240V / 50Hz system.

Algerian Type C and Type F plugs will not fit the Cook Islands’ Type I outlets without an adapter. A Cook Islands-compatible adapter is the safest choice.

What to pack:

🇦🇴 Angola

Home: 220V, 50 Hz, Type C.

Vs. the Cook Islands: Angola’s voltage and frequency are close to the Cook Islands’ electrical system, so voltage is usually straightforward.

Angola uses Type C, while the Cook Islands use Type I outlets. Travelers from Angola should bring a Cook Islands-compatible Type I plug adapter.

What to pack:

🇧🇯 Benin

Home: 220V, 50 Hz, Type C/E.

Vs. the Cook Islands: Benin’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually less of a concern.

Beninese Type C and Type E plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇧🇼 Botswana

Home: 230V, 50 Hz, Type D/G/M.

Vs. the Cook Islands: Botswana’s voltage and frequency are close to the Cook Islands’ electrical system, so voltage is usually not the main issue.

Botswana’s Type D, Type G, and Type M plugs will need an adapter for the Cook Islands’ Type I outlets. A Cook Islands-compatible adapter gives you the most flexibility.

What to pack:

🇧🇫 Burkina Faso

Home: 220V, 50 Hz, Type C/E.

Vs. the Cook Islands: Burkina Faso’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually simple.

Burkina Faso Type C and Type E plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇧🇮 Burundi

Home: 220V, 50 Hz, Type C/E.

Vs. the Cook Islands: Burundi’s voltage and frequency are close to the Cook Islands’ electrical setup, so voltage is usually straightforward.

Burundian Type C and Type E plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇨🇲 Cameroon

Home: 220V, 50 Hz, Type C/E.

Vs. the Cook Islands: Cameroon’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the problem.

Cameroonian Type C and Type E plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇨🇫 Central African Republic

Home: 220V, 50 Hz, Type C/E.

Vs. the Cook Islands: The Central African Republic’s voltage and frequency are close to the Cook Islands’ electrical system, so voltage is usually simple.

Type C and Type E plugs will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇹🇩 Chad

Home: 220V, 50 Hz, Type C/E/F.

Vs. the Cook Islands: Chad’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually straightforward.

Chadian Type C, Type E, and Type F plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇰🇲 Comoros

Home: 220V, 50 Hz, Type C/E.

Vs. the Cook Islands: Comoros’ voltage and frequency are close to the Cook Islands’ electrical setup, so voltage is usually easy.

Comorian Type C and Type E plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇨🇬 Congo / Republic of the Congo

Home: 230V, 50 Hz, Type C/E.

Vs. the Cook Islands: Congo’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the issue.

Congolese Type C and Type E plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇨🇩 Democratic Republic of the Congo

Home: 220V, 50 Hz, Type C.

Vs. the Cook Islands: The Democratic Republic of the Congo’s voltage and frequency are close to the Cook Islands’ electrical system, so voltage is usually straightforward.

Type C plugs will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇩🇯 Djibouti

Home: 220V, 50 Hz, Type C/E.

Vs. the Cook Islands: Djibouti’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the problem.

Djiboutian Type C and Type E plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇪🇬 Egypt

Home: 220V, 50 Hz, Type C/F.

Vs. the Cook Islands: Egypt’s voltage and frequency are generally close to the Cook Islands.

Egyptian Type C and Type F plugs need an adapter for the Cook Islands’ Type I outlets. A Cook Islands-compatible adapter is still useful.

What to pack:

🇬🇶 Equatorial Guinea

Home: 220V, 50 Hz, Type C/E.

Vs. the Cook Islands: Equatorial Guinea’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually straightforward.

Equatorial Guinean Type C and Type E plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇪🇷 Eritrea

Home: 220V, 50 Hz, Type C.

Vs. the Cook Islands: Eritrea’s voltage and frequency are close to the Cook Islands’ electrical system, so voltage is usually not a concern.

Eritrean Type C plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇸🇿 Eswatini

Home: 230V, 50 Hz, Type M.

Vs. the Cook Islands: Eswatini’s voltage and frequency are close to the Cook Islands’ electrical setup, so voltage is usually not the issue.

Eswatini’s Type M plugs will need an adapter for the Cook Islands’ Type I outlets. A Cook Islands-compatible adapter is still useful for flexibility.

What to pack:

🇪🇹 Ethiopia

Home: 220V, 50 Hz, Type C/F/L.

Vs. the Cook Islands: Ethiopia’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually simple.

Ethiopian Type C, Type F, and Type L plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇬🇦 Gabon

Home: 220V, 50 Hz, Type C.

Vs. the Cook Islands: Gabon’s voltage and frequency are close to the Cook Islands’ electrical system, so voltage is usually straightforward.

Gabonese Type C plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇬🇲 Gambia

Home: 230V, 50 Hz, Type G.

Vs. the Cook Islands: Gambia’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the main problem.

Gambia’s Type G plugs do not fit the Cook Islands’ Type I outlets without an adapter. Travelers from Gambia should bring a Cook Islands-compatible plug adapter.

What to pack:

🇬🇭 Ghana

Home: 230V, 50 Hz, Type D/G.

Vs. the Cook Islands: Ghana’s voltage and frequency are close to the Cook Islands’ electrical setup, so voltage is usually not the issue.

Ghana’s Type D and Type G plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇬🇳 Guinea

Home: 220V, 50 Hz, Type C/F.

Vs. the Cook Islands: Guinea’s voltage and frequency are generally close to the Cook Islands.

Guinean Type C and Type F plugs need an adapter for the Cook Islands’ Type I outlets. Pack a Cook Islands-compatible adapter.

What to pack:

🇬🇼 Guinea-Bissau

Home: 220V, 50 Hz, Type C.

Vs. the Cook Islands: Guinea-Bissau’s voltage and frequency are close to the Cook Islands’ electrical setup, so voltage is usually easy.

Type C plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇰🇪 Kenya

Home: 240V, 50 Hz, Type G.

Vs. the Cook Islands: Kenya’s voltage and frequency match the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the main concern.

Kenya’s Type G plugs do not fit the Cook Islands’ Type I outlets without an adapter. Travelers from Kenya should bring a Cook Islands-compatible plug adapter.

What to pack:

🇱🇸 Lesotho

Home: 220V, 50 Hz, Type M.

Vs. the Cook Islands: Lesotho’s voltage and frequency are close to the Cook Islands’ electrical system, so voltage is usually straightforward.

Lesotho’s Type M plugs need an adapter for the Cook Islands’ Type I outlets. A flexible Cook Islands-compatible adapter is still useful.

What to pack:

🇱🇾 Libya

Home: 230V, 50 Hz, Type C/F/L.

Vs. the Cook Islands: Libya’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the issue.

Libyan Type C, Type F, and Type L plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇲🇼 Malawi

Home: 230V, 50 Hz, Type G.

Vs. the Cook Islands: Malawi’s voltage and frequency are close to the Cook Islands’ electrical setup, so voltage is usually not a concern.

Malawi’s Type G plugs do not fit the Cook Islands’ Type I outlets without an adapter. Bring a Cook Islands-compatible plug adapter.

What to pack:

🇲🇱 Mali

Home: 220V, 50 Hz, Type C/E.

Vs. the Cook Islands: Mali’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually easy.

Malian Type C and Type E plugs need an adapter for the Cook Islands’ Type I outlet setup.

What to pack:

🇲🇷 Mauritania

Home: 220V, 50 Hz, Type C.

Vs. the Cook Islands: Mauritania’s voltage and frequency are close to the Cook Islands’ electrical system, so voltage is usually straightforward.

Mauritanian Type C plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇲🇺 Mauritius

Home: 230V, 50 Hz, Type C/E/G.

Vs. the Cook Islands: Mauritius’ voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the problem.

Mauritian Type C, Type E, and Type G plugs will need adapters for the Cook Islands’ Type I outlets.

What to pack:

🇲🇦 Morocco

Home: 220V, 50 Hz, Type C/E.

Vs. the Cook Islands: Morocco’s voltage and frequency are close to the Cook Islands’ electrical setup, so voltage is usually simple.

Moroccan Type C and Type E plugs need an adapter for the Cook Islands’ Type I outlet setup.

What to pack:

🇲🇿 Mozambique

Home: 220V, 50 Hz, Type C/F/M.

Vs. the Cook Islands: Mozambique’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually straightforward.

Mozambican Type C, Type F, and Type M plugs will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇳🇦 Namibia

Home: 220V, 50 Hz, Type M.

Vs. the Cook Islands: Namibia’s voltage and frequency are close to the Cook Islands’ electrical system, so voltage is usually not the concern.

Namibia’s Type M plugs need an adapter for the Cook Islands’ Type I outlets. A Cook Islands-compatible adapter gives you more flexibility.

What to pack:

🇳🇪 Niger

Home: 220V, 50 Hz, Type C/E.

Vs. the Cook Islands: Niger’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually easy.

Nigerien Type C and Type E plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇳🇬 Nigeria

Home: 230V, 50 Hz, Type D/G.

Vs. the Cook Islands: Nigeria’s voltage and frequency are close to the Cook Islands’ electrical system, so voltage is usually not the issue.

Nigeria’s Type D and Type G plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇷🇼 Rwanda

Home: 230V, 50 Hz, Type C/J.

Vs. the Cook Islands: Rwanda’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually straightforward.

Rwandan Type C and Type J plugs need an adapter for the Cook Islands’ Type I outlets.

Modern dual-voltage electronics should be simple with the right adapter.

What to pack:

🇸🇹 São Tomé and Príncipe

Home: 220V, 50 Hz, Type C/F.

Vs. the Cook Islands: São Tomé and Príncipe’s voltage and frequency are generally close to the Cook Islands.

Type C and Type F plugs need an adapter for the Cook Islands’ Type I outlets. A Cook Islands-compatible adapter is still useful.

What to pack:

🇸🇳 Senegal

Home: 230V, 50 Hz, Type C/D/E.

Vs. the Cook Islands: Senegal’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the problem.

Senegalese Type C, Type D, and Type E plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇸🇨 Seychelles

Home: 240V, 50 Hz, Type G.

Vs. the Cook Islands: Seychelles’ voltage and frequency match the Cook Islands’ 240V / 50Hz setup, so voltage is usually not the issue.

Seychelles Type G plugs need an adapter for the Cook Islands’ Type I outlets. A universal adapter with Cook Islands coverage is the easiest setup.

What to pack:

🇸🇱 Sierra Leone

Home: 230V, 50 Hz, Type D/G.

Vs. the Cook Islands: Sierra Leone’s voltage and frequency are close to the Cook Islands’ electrical setup, so voltage is usually straightforward.

Sierra Leone’s Type D and Type G plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇸🇴 Somalia

Home: 220V, 50 Hz, Type C/G.

Vs. the Cook Islands: Somalia’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz system, so voltage is usually less of a concern.

Somali Type C and Type G plugs need an adapter for the Cook Islands’ Type I outlet setup.

What to pack:

🇸🇸 South Sudan

Home: 230V, 50 Hz, Type C.

Vs. the Cook Islands: South Sudan’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually straightforward.

South Sudanese Type C plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇸🇩 Sudan

Home: 230V, 50 Hz, Type C/D.

Vs. the Cook Islands: Sudan’s voltage and frequency are close to the Cook Islands’ electrical system, so voltage is usually not the issue.

Sudanese Type C and Type D plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇹🇿 Tanzania

Home: 230V, 50 Hz, Type D/G.

Vs. the Cook Islands: Tanzania’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually straightforward.

Tanzania’s Type D and Type G plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇹🇬 Togo

Home: 220V, 50 Hz, Type C.

Vs. the Cook Islands: Togo’s voltage and frequency are close to the Cook Islands’ electrical system, so voltage is usually easy.

Togolese Type C plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇹🇳 Tunisia

Home: 230V, 50 Hz, Type C/E.

Vs. the Cook Islands: Tunisia’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually less of a concern.

Tunisian Type C and Type E plugs need an adapter for the Cook Islands’ Type I outlet setup.

What to pack:

🇺🇬 Uganda

Home: 240V, 50 Hz, Type G.

Vs. the Cook Islands: Uganda’s voltage and frequency match the Cook Islands’ electrical setup, so voltage is usually not the main issue.

Uganda’s Type G plugs need an adapter for the Cook Islands’ Type I outlets. A universal adapter with Cook Islands coverage is the easiest choice.

What to pack:

🇿🇲 Zambia

Home: 230V, 50 Hz, Type C/D/G.

Vs. the Cook Islands: Zambia’s voltage and frequency are close to the Cook Islands’ electrical system, so voltage is usually straightforward.

Zambian Type C, Type D, and Type G plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🇿🇼 Zimbabwe

Home: 220V, 50 Hz, Type D/G.

Vs. the Cook Islands: Zimbabwe’s voltage and frequency are close to the Cook Islands’ 240V / 50Hz setup, so voltage is usually easy.

Zimbabwe’s Type D and Type G plugs need an adapter for the Cook Islands’ Type I outlets.

What to pack:

🔌 120V or Mixed-Voltage Countries

⚠️ Voltage Check Required for Single-Voltage Appliances

The Cook Islands use 240V electricity, so travelers from 120V or mixed-voltage countries need to check single-voltage appliances carefully.

Dual-voltage devices labeled 100–240V only need an adapter.

Hair tools and other single-voltage appliances may require a converter if they are not compatible with the Cook Islands’ 240V power.

🇱🇷 Liberia

Home: 120V, 60 Hz, Type A/B/C.

Vs. the Cook Islands: Liberia uses lower-voltage power than the Cook Islands. The Cook Islands use 240V electricity, so single-voltage 120V appliances are not safe with only a plug adapter.

Liberia uses Type A, Type B, and Type C plugs. All will need an adapter for the Cook Islands’ Type I outlet setup.

What to pack:

💡 Dual-voltage devices 100–240V need an adapter only — no converter.

🇲🇬 Madagascar

Home: 127V / 220V mix, 50 Hz, Type C/E.

Vs. the Cook Islands: Madagascar has mixed voltage, while the Cook Islands use 240V electricity. If you are using a device from a 127V area or a single-voltage 127V appliance, it is not safe in the Cook Islands with only a plug adapter.

Madagascar uses Type C and Type E plugs. Both will need an adapter for the Cook Islands’ Type I outlets.

What to pack:

💡 Dual-voltage devices 100–240V need an adapter only — no converter.

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✅ Universal Packing Checklist

Use this checklist no matter where you’re traveling from. Adjust only converter vs. adapter based on your home country.

Essential Power Gear

Conditional — Only If Needed

Required only if you bring single-voltage 100–120V appliances like hair dryers, curling irons, straighteners, steamers, or other heat tools and they are not compatible with the Cook Islands’ 240V electricity.

Organization & Protection

Quick Safety Check

Look for “100–240V” printed on chargers and devices.

✔ Adapter only
✖ No converter needed

If the label says 100–240V, your device is usually safe in the Cook Islands with the correct plug adapter.

If the label says 100V only, 110V only, 120V only, or 127V only, do not use it in the Cook Islands with only a plug adapter. You may need a step-down voltage converter or a dual-voltage replacement.

If the label says 220V only, 230V only, or 240V only, it is usually compatible with the Cook Islands’ voltage, but you still need the correct plug adapter if the plug shape does not match.

🎒 Final Tips for the Cook Islands

Most travelers only need a plug adapter for phones, laptops, cameras, tablets, Kindles, power banks, and USB chargers because these are usually dual-voltage.

Adapters change plug shape, not voltage. If a device is single-voltage, plugging it into the wrong voltage without the correct converter can permanently damage it.

The Cook Islands use Type I outlets, with 240V electricity and 50Hz frequency. Type I is the angled flat-pin plug style also used in Australia and New Zealand.

Travelers from countries that already use 220–240V electricity may have easier voltage compatibility, but plug shape still matters. Travelers from North America, Japan, Taiwan, parts of Central America, parts of South America, and other lower-voltage regions need to check appliance labels carefully.

Outlets can be limited. In resorts, beachfront bungalows, villas, guesthouses, island lodges, apartments, older properties, beach cottages, and smaller island stays, convenient outlets may be in short supply. A travel power strip solves this instantly.

USB ports are not guaranteed. Do not assume your resort room, bungalow, villa, apartment, transfer vehicle, airport lounge, café, guesthouse, or bedside lamp will have built-in USB charging.

Hair tools are the biggest risk. If yours is not dual-voltage, do not use it in the Cook Islands with only a plug adapter. You may need a step-down voltage converter, accommodation-provided tools, skip the tool, or switch to a dual-voltage travel version.

Power banks are incredibly useful. Long-haul flights, inter-island flights, lagoon cruises, boat days, snorkeling trips, scuba diving days, beach excursions, scooter rides, hiking days, airport transfers, resort days, and photo-heavy sightseeing can drain your phone fast.

The Cook Islands’ electrical setup is fairly simple because the islands mainly use Type I outlets with 240V / 50Hz electricity. The main thing is making sure your plug fits and your device can handle the voltage.

Once your adapter and voltage situation are handled, you are prepared for Rarotonga, Avarua, Muri Lagoon, Aitutaki, One Foot Island, Atiu, Mangaia, Mauke, Mitiaro, beachfront resorts, island lodges, villas, bungalows, snorkeling trips, lagoon excursions, boat transfers, and longer Cook Islands routes.

Power access can be more limited once you leave the main resort areas. If you are visiting the outer islands, staying somewhere remote, taking long excursions, or relying on your phone for bookings, photos, maps, messages, flight details, or weather updates, keep your devices charged when you can and bring a reliable power bank.

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