From Montenegro to Tonga
When travelling from Montenegro to Tonga: None of your Montenegro plug types fit in Tonga. You will need a travel adapter. 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.
Montenegro
TongaYour plugs
Type C
No fit
Type F
No fit
Accepted in Tonga
Type I
0 of 2 plug type(s) match
You: C, F • Tonga: I
No fit for: C, F
Voltage: 230V → 240V
Different voltage
You may need a voltage converter.
Frequency: 50Hz → 50Hz
Same frequency
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.