From Cayman Islands to Tonga
When travelling from Cayman Islands to Tonga: None of your Cayman Islands plug types fit in Tonga. You will need a travel adapter. Voltage is different (120V → 240V). Check your charger label; if it doesn’t list 240V you’ll also need a voltage converter. Frequency differs (60Hz → 50Hz). Modern phone and laptop chargers are usually fine, but some clocks, motors, and appliances may behave incorrectly.
Cayman Islands
TongaYour plugs
Type A
No fit
Type B
No fit
Accepted in Tonga
Type I
0 of 2 plug type(s) match
You: A, B • Tonga: I
No fit for: A, B
Voltage: 120V → 240V
Different voltage
You may need a voltage converter.
Frequency: 60Hz → 50Hz
Different frequency
Check device supports both 50/60 Hz.
You will need an adapter and likely a converterAdapters you may need
Your plug shape does not fully match. Voltage differs; check for 100–240V support.
About electricity in Tonga
Tonga uses 240V/50Hz with Type I sockets. Australian/NZ standard.
Grid & history
Tonga Power supplies the kingdom, primarily from diesel with growing solar to reduce fuel costs.
Availability
Reliable on Tongatapu; outer islands have variable supply.
Sockets & hotels
Type I.
Energy mix
Practical tips
- An Australian or NZ Type I adapter works in both countries.
- Voltage is 240V, the high end of the European range, and modern chargers handle it.
Frequently asked questions
- Will my Cayman Islands plug work in Tonga?
- No. None of your Cayman Islands plugs (Type A, Type B) fit in Tonga sockets (Type I), so you will need a travel adapter.
- What plug type does Tonga use?
- Tonga uses Type I. The supply is 240V at 50Hz.
- Do I need a voltage converter for Tonga when travelling from Cayman Islands?
- Tonga runs on 240V, while Cayman Islands uses 120V. Check your charger label for a 100 to 240V rating; if it does not list 240V you will also need a voltage converter.
- Is the electrical frequency in Tonga the same as Cayman Islands?
- Frequency in Tonga is 50Hz, while Cayman Islands uses 60Hz. Modern phone and laptop chargers handle either, but clocks, motors, and some heating appliances may behave incorrectly.