Electricity and sockets
An adapter is required: Tonga uses Type I, which does not accept plugs from the UK.
Sockets at the destination
Mains supply in Tonga: 240 V, 50 Hz, sockets of Type I. At 240 V the supply matches what UK and European appliances expect, so no converter is needed.
Handy for multi-stop trips: Papua New Guinea, Fiji, Vanuatu and Nauru use the same plug types. Watch out when moving on: the Marshall Islands, Palau and American Samoa use a completely different system. In Oceania, 13 of 18 recorded destinations use exactly this combination.
Protective earth
Sockets in Tonga are normally earthed.
Quick check by home country
| From the UK | adapter for Type I | Check route → |
|---|---|---|
| From the US | adapter for Type I | Check route → |
Voltage and frequency in Tonga match UK appliances, so only the plug shape matters. Check your own device →
The same sockets are used further afield: Argentina.
Common questions
Yes. UK plugs do not fit the sockets in Tonga.
Tonga uses Type I at 240 V and 50 Hz.
No. At 240 V the supply matches UK and European appliances.
If a socket gets hot, crackles or smells burnt, unplug the device straight away.
Data for Tonga from IEC World Plugs and IEC TR 60083. Sources and method →