In Tonga, power plugs and sockets are type I. The standard voltage is 240V at a frequency of 50Hz.
I
Socket type
240V
Voltage
50Hz
Frequency
Socket types used in Tonga
For each socket below you'll also see the matching plug. These are what you'll find in the wall.
Type I
Check your plugs for Tonga
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Travelling from 🇺🇸 the United States to Tonga?
🔌 Adapter needed⚡ Voltage converter needed🕐 Frequency differs
Do your plugs fit in Tonga?
In Tonga they use sockets of type I. Your types A and B from the United States won't fit, so you need a power plug travel adapter.
I · Socket in Tongavs
✕A · Your plug A✕B · Your plug B
✕ Socket I does not fit your types A and B
Voltage & frequency
🇹🇴 Tonga
240V·50Hz
vs
🇺🇸 United States
120V·60Hz
Do you need a voltage converter in Tonga?
⚡
Mind the voltage. The standard voltage in Tonga (240V) is much higher than in the United States (120V). Without a converter you risk serious damage to your devices.
🕐
Frequency differs. The frequency in Tonga (50Hz) differs from the United States (60Hz). Be extra careful with motorised devices and items with timers or motors (clocks, shavers, some medical devices).
Many chargers (phones, laptops, cameras) are labelled INPUT: 100–240V, 50/60Hz — those work anywhere and only need a plug adapter, never a converter. Always check the label.
Frequently asked questions
What plug type is used in Tonga?
Tonga uses power sockets of type I. The standard voltage is 240V at a frequency of 50Hz.
Do I need a power plug adapter in Tonga?
Yes. If you travel from the United States you need a power plug travel adapter for type I sockets in Tonga, because your types A and B plugs don't fit.
Do I need a voltage converter in Tonga?
Yes. The voltage in Tonga (240V) differs from the United States (120V), so you need a voltage converter to protect your devices — unless a device is labelled 100–240V.
Learn about the plug types used in Tonga
See every country that uses each of these plug types:
