From Australia to Cook Islands
When travelling from Australia to Cook Islands: Good news: all your Australia plug types fit in Cook Islands. Voltage is different (230V → 240V). Check your charger label; if it doesn’t list 240V you’ll also need a voltage converter. Frequency is the same at 50Hz.
Australia
Cook IslandsYour plugs
Type I
Fits
Accepted in Cook Islands
Type I
1 of 1 plug type(s) match
You: I • Cook Islands: I
Voltage: 230V → 240V
Different voltage
You may need a voltage converter.
Frequency: 50Hz → 50Hz
Same frequency
Plugs fit, but voltage differsAdapters you may need
Voltage differs; check for 100–240V support.
About electricity in Cook Islands
Cook Islands runs on 240V/50Hz with Type I sockets. NZ standard, reflecting the free-association relationship with New Zealand.
Grid & history
Te Aponga Uira supplies Rarotonga from diesel with significant solar additions.
Availability
Reliable on Rarotonga.
Sockets & hotels
Type I. NZ plugs fit.
Energy mix
Practical tips
- A New Zealand Type I adapter works directly.
- Voltage is 240V, the high end of the European range, and modern chargers handle it.