Do You Need a Travel Adapter for Cook Islands?
Cook Islands uses Type I sockets at 240 V, 50 Hz. (Cook Islands is a territory of New Zealand.)
Check your own plug
Verdict by where you are travelling from
From United States: You need a Type I adapter and a voltage converter.
Dual voltage (100–240 V input) covers 240 V. Type A/B plugs do not fit Cook Islands's Type I sockets. Pack a Type I adapter.
Single-voltage device (120 V) on a 240 V supply. A plug adapter alone will damage it; you need a voltage converter, or a dual-voltage model. You will also need a Type I plug adapter.
What to buy (on amazon.com)
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From United Kingdom: You need a Type I adapter.
Dual voltage (100–240 V input) covers 240 V. Type G plugs do not fit Cook Islands's Type I sockets. Pack a Type I adapter.
240 V is within what this device expects. Type G plugs do not fit Cook Islands's Type I sockets. Pack a Type I adapter.
What to buy (on amazon.co.uk)
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From Europe: You need a Type I adapter.
Dual voltage (100–240 V input) covers 240 V. Type C/E/F plugs do not fit Cook Islands's Type I sockets. Pack a Type I adapter.
240 V is within what this device expects. Type C/E/F plugs do not fit Cook Islands's Type I sockets. Pack a Type I adapter.
What to buy (on amazon.de)
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From Australia: No adapter needed for your devices.
Dual voltage (100–240 V input) covers 240 V. Your Type I plug fits Cook Islands's Type I socket.
240 V is within what this device expects. Your Type I plug fits Cook Islands's Type I socket.
From Canada: You need a Type I adapter and a voltage converter.
Dual voltage (100–240 V input) covers 240 V. Type A/B plugs do not fit Cook Islands's Type I sockets. Pack a Type I adapter.
Single-voltage device (120 V) on a 240 V supply. A plug adapter alone will damage it; you need a voltage converter, or a dual-voltage model. You will also need a Type I plug adapter.
What to buy (on amazon.ca)
Some links on this site are affiliate links: if you buy through them we may earn a small commission at no extra cost to you.
From Japan: You need a Type I adapter and a voltage converter.
Dual voltage (100–240 V input) covers 240 V. Type A/B plugs do not fit Cook Islands's Type I sockets. Pack a Type I adapter.
Single-voltage device (100 V) on a 240 V supply. A plug adapter alone will damage it; you need a voltage converter, or a dual-voltage model. You will also need a Type I plug adapter.
What to buy (on amazon.co.jp)
Some links on this site are affiliate links: if you buy through them we may earn a small commission at no extra cost to you.
Device by device: 240 V in Cook Islands
| Device | Voltage | Plug | What you need |
|---|---|---|---|
| Phone, laptop or USB charger | Dual voltage: fine | Type I adapter unless your plug matches | Plug adapter at most |
| Camera battery charger | Dual voltage: fine | Type I adapter unless your plug matches | Plug adapter at most |
| Hair dryer or straightener | Single voltage: only if rated for 220–240 V | Type I adapter unless your plug matches | Adapter, plus a converter if it is a 110–120 V model |
| Electric shaver | Single voltage: only if rated for 220–240 V | Type I adapter unless your plug matches | Adapter, plus a converter if it is a 110–120 V model |
| CPAP machine | Dual voltage: fine | Type I adapter unless your plug matches | Plug adapter at most |
| Kettle or other appliance | Single voltage: only if rated for 220–240 V | Type I adapter unless your plug matches | Adapter, plus a converter if it is a 110–120 V model |
Not sure which your device is? Read the INPUT line on the label.
Frequently asked questions
What plug does Cook Islands use?
Cook Islands uses Type I sockets. Type I: two flat pins in a v shape and a flat earth pin.
What is the voltage in Cook Islands?
Cook Islands runs on 240 V at 50 Hz.
Can I charge my iPhone or laptop in Cook Islands?
Yes. Phones, laptops and USB chargers are dual voltage (100–240 V) so the voltage is fine anywhere; you just need a plug adapter for Cook Islands's Type I sockets unless your own plug is one of those types.
Do I need a voltage converter for Cook Islands?
Only for single-voltage 110–120 V appliances (typically hair dryers, straighteners and kettles bought in North America or Japan). Anything marked INPUT 100–240 V just needs a plug adapter.
Other countries in Oceania
Socket types: Type I · Voltage by country · How this data was verified