Can an American Drive in Tonga? — Yes, but You Switch to the Left

Tonga is a small Pacific kingdom where the driving is gentle and the distances short — which makes it an easy place for American visitors to hire a car, with one important caveat. You will be driving on the opposite side of the road from home, and that single change deserves your full attention for the first day.

The verdict on your American licence

You can drive in Tonga on your US licence, with an International Driving Permit recommended to carry alongside it. Rental companies generally prefer to see the IDP, and it provides a recognised translation of your licence; arrange it in the US before you travel and keep it with your licence and passport. For a normal holiday that combination covers you.

Driving on the left is the whole adjustment

The United States drives on the right; Tonga drives on the left. This is the one thing most likely to catch you out, and the risky moments are predictable — pulling out onto a road, taking a junction, glancing the wrong way before you move, or drifting to the familiar side on an empty stretch. Practise in a quiet spot before you join busier roads, keep saying “stay left” out loud if it helps, and stay deliberate until it stops feeling reversed. Overtaking is where most visitors’ instincts betray them, so be especially careful there.

Low speeds, small island roads

Tonga’s limits are modest throughout: about 50 km/h in towns, 70 on rural roads and 80 km/h as a top speed. The capital, Nuku’alofa, and the main island are compact, so you are rarely covering long distances, and the low limits match the scale and condition of the roads rather than restricting open highway. Watch for pedestrians, animals and the occasional pothole, and don’t be tempted to push the pace.

Alcohol and emergencies

The alcohol limit is 0.08, similar to most US states, but with left-side driving still fresh and unfamiliar roads, the safe approach is no alcohol before driving. The emergency number is 112. Mobile signal can be patchy away from the main town, so download offline maps before you set off.

Check the full rules on our Tonga driving guide, and confirm your documents with the Driving Permit Checker.