5 Best Travel Adapters for the Cook Islands

Last Updated: 30 June, 2025

Power Adapters for Rarotonga and the Cook Islands

Whenever travelling to a new country, one of the essentials is ensuring you can use your electrical devices. Do you have the right travel adapter for the Cook Islands?

The Cook Islands’ power outlets are Type I (i), which is good news for people travelling from New Zealand, Australia, and China, as they all have the same type of power outlet. The electrical current in the Cook Islands is 240V AC, 50Hz.

If you are coming from a country such as the Americas, your electrical devices will either have a 110V/240V switch on the item, or you will need to ensure your travel adapter also converts voltage.

We ensure that the travel adapters included in this list of the best travel adapters for the Cook Islands are compatible with the local power outlets.

For a more in-depth look at electricity in the Cook Islands, see our guide, Cook Islands Electrical Outlets & Power Plugs.

1. The Only Travel Adapter You’ll Ever Need

Say goodbye to the hassle of travel adapters with this universal adapter, which works in over 200 countries! This six-in-one powerhouse lets you charge up to six devices simultaneously with four USB-A ports, one USB-C port, and one AC socket. It’s perfect for your phones, laptops, tablets and more.

Safety is paramount with its built-in 10A fuse, safety shutters and plug lock system. Plus, it’s RoHS, CE, and FCC certified for your peace of mind. Just remember, it’s not a voltage converter, so it might not be suitable for high-power appliances like hair dryers.

With a 30-day money-back guarantee and a two-year warranty, this all-in-one adapter is a travel essential.

Check this Universal Travel Adapter out on Amazon.

5 Best Travel Adapters for the Cook Islands

2. BESTEK Adapter + Converter Multi-Plug

Speaking of voltage converters, if you’re coming from the Americas, then this universal multi-plug adapter and converter will be a trusty travel companion for many trips to come.

Use this multi-plug to convert electrical devices that usually use 110V 60Hz to the Cook Islands’ 240V 50Hz, which protects your devices from overheating and potential electrical fires. The multi-plug has four different output sockets, so you can use it all around the world.

Check the BESTEK Travel Adapter out on Amazon.

3. OREI USB-to-Cook Islands Adapter

Not only does this cheerfully colourful travel adaptor for Rarotonga and the Cook Islands have a US input for our American friends, but it has two USB inputs!

These compact travel adapters with three inputs allow you to make the most of the typically limited power outlets available in motels and lodges in the Cook Islands. We also like that they have a grounded connection and surge protection. Note that this one also doesn’t convert voltage.

Check the OREI USB-to-Cook Islands Travel Adapter out on Amazon.

4. 3-Pack Tiny Travel Adapter

Families, you might want to make sure there are multiple adapters available! These simple US-to-Cook Islands travel adapters by Ceptics come in a pack of three and are very reasonably priced. However, there is no voltage converter, so be sure to check which devices you use it with.

Check the Ceptics Tiny Travel Adapter (3-Pack) out! We also love their funky universal chargers, so you may as well browse the full Ceptics Store.

5. The World’s Smallest Universal Travel Adapter

Take “travel size” to a whole new level with this Kikkerland UL03-A Universal Travel Adapter. The compact travel adapter, which can fold into a variety of positions, is compatible with more than 150 countries, including the Cook Islands. The travel adapter folds flatter than any other universal adapter on the market, meaning it won’t occupy the entire power socket.

What’s more, it’s extremely affordable, so you can always justify getting a few of them. Note that the travel adapter doesn’t convert voltage.

Check the Kikkerland UL03-A Universal Travel Adapter out!

More Travel Essentials for Rarotonga and the Cook Islands

That’s it for our complete list of the best travel adapters for Rarotonga and the Cook Islands. Remember to check out our Cook Islands Electrical Outlets & Power Plugs if you have more questions. Otherwise, here are more travel essentials to help you with your trip:

Finally, be sure to bookmark the 30 Tips for Travelling in the Cook Islands – there’s some pretty handy stuff in there!

Sources:

The information in this guide has been compiled from our extensive research, travel and experiences across the Cook Islands and the South Pacific, accumulated over more than a decade of numerous visits to each destination. Additional sources for this guide include the following:

Cook Islands Tourism Corporation (General travel advice - Updated [2025])
Cook Islands Tourism Industry Council (Tourism trade association - Updated [2025])
Ministry of Foreign Affairs and Immigration (Visa and immigration advice - Updated [2025])
Ministry of Finance & Economic Management (Border restrictions advice - Updated [2025])
Ministry of Agriculture (Biosecurity advice - Updated [2025])
Cook Islands Meteorological Service (Weather forecast and warnings - Updated [2025])
Cook Islands Statistics Office (Statistics and travel data - Updated [2025])
Ministry of Transport (Transport operators and licenses - Updated [2025])
SPTO (Pacific tourism advice - Updated [2025])
Safe Travel (New Zealand travel advisory for the Cook Islands - Updated [2025])
Smart Traveller (Australia travel advisory for the Cook Islands - Updated [2025])

At Cook Islands Pocket Guide, we uphold strict editorial standards to ensure accurate and quality content.

About the Author

Robin C.

This article was reviewed and published by Robin, the co-founder of Cook Islands Pocket Guide. He has lived, worked and travelled across 16 different countries before settling in the South Pacific, so he knows a thing or two about planning the perfect trip in this corner of the world. Robin works and consults regularly with Cook Islands Tourism Corporation, a local government body representing the tourism industry. Robin is also the co-founder of several other South Pacific travel guides and is a regular host of webinars with the South Pacific Tourism Organisation.

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