Tonga Power Plugs, Wall Sockets & Electrical Outlets
In Tonga, power plugs and sockets (electrical outlets) of Type I (AS/NZS 3112, two angled flat pins plus vertical grounding pin, grounded) are used. Wall sockets run at 240V and 50Hz. Check if you need a travel adapter, electrical adapter or voltage converter before travelling to Tonga.
Check Adapter Compatibility
Do you need an adapter for your trip?
Tonga uses:
Electrical Standards in Tonga: Voltage, Frequency & Plug Type
Tonga power plug standards follow the Australasian AS/NZS 3112 system, meaning travelers should expect the same Type I plug and socket arrangement found in Australia and New Zealand. Electricity in Tonga is supplied at 240 volts and 50Hz, so visitors arriving from regions with different voltage or plug systems will need to plan ahead before connecting any devices to a Tongan wall socket.
Voltage and Frequency in Tonga
Tonga runs on a 240V, 50Hz electrical supply, consistent with most Pacific Island nations and Australasia. Devices designed for 220-240V systems will operate normally, but appliances built for 110-120V supply, such as some North American electronics, may require a voltage converter in addition to a plug adapter to function safely.
Where to Buy a Travel Adapter for Tonga
Travel adapters for Tonga's Type I sockets are widely available at airport shops, electronics retailers, and luggage stores before departure, as well as online through major retailers. Look for an adapter specifically labeled for Australia, New Zealand, or Type I outlets, since this matches the socket configuration used throughout Tonga. Purchasing before travel is generally easier than finding one locally on the islands.
Understanding Tonga's Power Plugs and Sockets
The Type I plug used in Tonga is a grounded 3-pin plug featuring two angled flat pins set at 30 degrees along with a vertical grounding pin. This design, based on the AS/NZS 3112 standard, provides a secure, polarized connection to the wall socket and is rated for 10A at 220-240V, suitable for most household electronics, chargers, and small appliances.
- Type I plug: two angled flat pins plus a vertical grounding pin
- Rated for 10A at 220-240V
- Used throughout Australia, New Zealand, Fiji, Tonga, and other Pacific nations
- Two-pin ungrounded versions exist for double-insulated appliances
Frequently Asked Questions
Yes, if your home country does not use Type I plugs, you will need an adapter to fit Tonga's wall sockets. Travelers from the UK, US, Europe, and most of Asia will require an adapter, while those from Australia or New Zealand can use their existing plugs without conversion.
Pack a Type I travel adapter compatible with the AS/NZS 3112 standard, which features angled flat pins and a grounding pin. If your devices are not rated for 220-240V, also bring a voltage converter to avoid damaging electronics.
Tonga uses the Type I plug, a grounded 3-pin plug with two angled flat pins and a vertical grounding pin, following the AS/NZS 3112 Australasian standard. This is the same plug type used in Australia and New Zealand.
Tonga's electrical supply operates at 240 volts and 50Hz. This matches the voltage used across Australia and much of the Pacific region, so devices rated for 220-240V will work without a converter.
