Oceania · plug & voltage guide
Tonga plug type and voltage
Tonga uses Type I outlets at 230 V and 50 Hz. Tonga uses Type I outlets. A Type I adapter works in all of them.
Verified Oct 17, 2026By Steven MoHow we check Report a correction
Used nationwide
U.S. outlets: 120 V
U.S.: 60 Hz
Check your devices
Quick answer
Tonga uses Type I outlets. A Type I adapter works in all of them. 230 V is about twice the 120 V of the United States. Chargers marked 100–240 V (phones, laptops, cameras) only need an adapter; single-voltage devices such as hair dryers and straighteners need a converter, or bring dual-voltage ones.
- Plug types
- Type I
- Voltage and frequency
- 230 V, 50 Hz
- Adapter from the U.S.
- Yes: Type I
- Converter
- Check your devices
Do I need a plug adapter?
- Plugs
- Type I
- Voltage
- 230 V
- Frequency
- 50 Hz
Tonga uses Type I outlets. A Type I adapter works in all of them.
230 V is about twice the 120 V of the United States. Chargers marked 100–240 V (phones, laptops, cameras) only need an adapter; single-voltage devices such as hair dryers and straighteners need a converter, or bring dual-voltage ones.
The outlets you'll find in Tonga
Type I
Two flat pins in a V and a grounding pin
Grounded · also used in Australia, New Zealand, China, Argentina
What to pack for Tonga
- A Type I plug adapter, one per device you charge at the same time.
- Dual-voltage hair tools, or a voltage converter if yours are 120 V only.
- Leave U.S. power strips at home: most are rated for 125 V, not 230 V.
Check the label first
Look for the input line on your charger or device. INPUT: 100–240V means it works anywhere with just a plug adapter. A single number such as 120V means it only works at that voltage.
Plugs in other Oceania destinations
- American SamoaA, B · 120 VNo adapter
- AustraliaI · 230 VType I
- Cook IslandsI · 240 VType I
- FijiI · 240 VType I
- French PolynesiaA, B, C, E, F · 110 V or 220 VSometimes Type C
- GuamA, B · 110 VNo adapter
- KiribatiI · 230 VType I
- MicronesiaA, B · 120 VNo adapter
- NauruI · 240 VType I
- New CaledoniaC, F · 220 VType C
- New ZealandI · 230 VType I
- NiueI · 230 VType I
- PalauA, B · 120 VNo adapter
- Papua New GuineaI · 240 VType I
- Pitcairn IslandsI · 230 VType I
- SamoaI · 230 VType I
- Solomon IslandsI · 230 VType I
- TuvaluI · 230 VType I
- VanuatuI · 230 VType I
Tonga plug FAQ
Tonga uses Type I.
Sources
Last verified Oct 17, 2026. Plug types and voltages rarely change, but hotels sometimes have older or international outlets.
- IEC: World Plugs, plug types and voltages by country
- Wikipedia: Mains electricity by country (compiled from IEC data)
Read how we collect and check this data, or tell us if something's out of date.
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