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Tonga: plug type, voltage, driving side and emergency number
Quick travel facts for Tonga (capital: Nuku'alofa): which plug and voltage to pack for, which side of the road traffic uses, who to call in an emergency, and the calling code, currency and time zone. Data checked 2026-10-27.
Quick answers
What plug type does Tonga use?
Tonga uses type I plugs and sockets. Type I is two flat pins angled in a V shape, usually with an earth pin. All plug types by country.
What voltage does Tonga use?
Tonga uses a mains supply of about 230–240 V at 50 Hz. The two sources give slightly different nominal figures, so a range is shown; the real supply varies a little. Voltage and frequency by country.
Which side of the road do they drive on in Tonga?
In Tonga, traffic drives on the left. Driving side by country.
What is the emergency number in Tonga?
The general emergency number in Tonga is 911. One source also lists separate numbers for individual services, which a second source did not confirm, so check an official source for police, ambulance and fire. Emergency numbers by country.
What is the calling code for Tonga?
The international calling code for Tonga is +676. Dial it after your international access prefix, or type + at the start on a mobile phone. Calling codes by country.
What currency does Tonga use?
The official currency of Tonga is the Tongan paʻanga (TOP). Currency by country.
What are the official languages of Tonga?
The official languages of Tonga are English and Tongan.
What time zone is Tonga in?
Tonga uses UTC+13:00 as its standard time. Clocks do not change for daylight saving time. Time zones by country.
Tonga travel facts at a glance
| Plug types | Type I |
|---|---|
| Voltage and frequency | 230–240 V, 50 Hz |
| Driving side | Drives on the left (left-hand traffic) |
| Emergency numbers | 911 (general emergency number; service-specific numbers unconfirmed) Other numbers may also work; only numbers both sources list are shown. |
| International dialling code | +676 |
| Currency | Tongan paʻanga (TOP, T$) |
| Official languages | English, Tongan |
| Time zone(s) | UTC+13:00 (standard time) |
| Daylight saving | No clock changes |
Frequently asked questions
Do I need a travel adapter for Tonga?
You need one if your devices have plugs that do not fit type I sockets. A travel adapter only changes the shape of the plug; it does not change the voltage.
Do I need a voltage converter for Tonga?
Most phone, laptop and camera chargers accept 100 to 240 V, so a plug adapter is usually enough: check the small print on the charger. Devices rated for 110 to 120 V only, such as some hair dryers and kitchen appliances from North America, need a converter or should not be used.
Is this travel information official?
No. GeoKnow is an independent site. The facts come from public datasets and are shown only where at least two sources agree. Always check official government travel advice before you go.
When was this checked?
The data was checked on 2026-10-27. Plugs, emergency numbers and currencies can change, so confirm important details before travelling.
Check before you travel
Data checked 2026-10-27. These facts are compiled from public datasets and are shown only where at least two independent sources agree. GeoKnow is an independent site and is not an official source: rules, plugs, emergency numbers and currencies can change. Before you go, confirm anything important with your government’s travel advice, the destination’s embassy, your airline, hotel or phone provider. Spotted a mistake? Tell us.
More about Tonga
See the main Tonga country page for the capital, population, land neighbours and outline map. Learn it, then test yourself: Capital Hunt (the capital of Tonga is Nuku'alofa), Outline, Guess the Flag, Neighbour Rush and Border Run, or browse all geography games.
Compare topics across countries: plug types, voltage and frequency, driving side, emergency numbers, calling codes, currencies, time zones and tipping.
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Sources: Plugs, voltage and frequency: Wikipedia “Mains electricity by country” and worldstandards.eu. Driving side: Wikipedia “Left- and right-hand traffic” and Wikidata. Emergency numbers: Wikipedia “List of emergency telephone numbers” and Wikidata. Calling codes: Wikipedia “List of telephone country codes”, Wikidata and REST Countries. Currency: REST Countries and Wikidata. Languages: REST Countries and Wikidata. Time zones: the IANA time zone database, cross-checked against Wikipedia or Wikidata. Tipping: Wikipedia “List of tipping customs by country” (single source, community edited).