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

Getting ready for your journey from Dominica to Tonga? Electrical compatibility is easy to overlook, but bringing the wrong plug or forgetting an adapter can leave you scrambling at your hotel. Here's what you need to know.

Dominica uses Type D and G plugs, while Tonga uses Type I. Since there is no overlap, you will need a travel adapter to plug in your devices. Make sure to pick one up before your trip or at the airport.

The voltage and frequency in Tonga (240V, 50Hz) are close to Dominica (230V, 50Hz), so your appliances should work without a converter.

Rather than packing bulky converters, consider buying travel-sized dual-voltage versions of appliances you can't live without. For phones and laptops, all you'll need is the right plug adapter since their chargers almost always support worldwide voltage.