United States to Tonga: Complete Plug & Adapter Guide (2026) Adapter Needed

Traveling from United States to Tonga means crossing into a different electrical system. Before you leave, take a moment to understand the plug types and voltage used in Tonga so you can keep all your devices charged and ready.

There's no plug compatibility between United States and Tonga. United States devices use Type A/B connectors, while Tonga sockets are Type I. An adapter is a must-have for this destination.

Voltage is another key difference. United States uses 120V while Tonga uses 240V. If your device only supports one voltage, using it with the wrong supply could cause overheating or permanent damage. Look for "Input: 100-240V" on your charger. Most modern phone and laptop chargers support this range.

Don't forget that Tonga hotel rooms sometimes have a universal shaver socket in the bathroom, but these low-wattage outlets aren't suitable for high-draw devices. For reliable charging, use the standard wall outlets with a proper adapter.