From Christmas Island to Tonga
When travelling from Christmas Island to Tonga: Good news: all your Christmas Island plug types fit in Tonga. 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.
Christmas Island
TongaYour plugs
Type I
Fits
Accepted in Tonga
Type I
1 of 1 plug type(s) match
You: I • Tonga: 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 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 Christmas Island plug work in Tonga?
- Yes. Every Christmas Island plug type (Type I) fits in Tonga sockets without an 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 Christmas Island?
- Tonga runs on 240V, while Christmas Island uses 230V. 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 Christmas Island?
- Frequency in Tonga is 50Hz, the same as Christmas Island.