Travel Adapter for Sri Lanka: Do You Need One? (Tonga → Sri Lanka)Adapter Needed

If you're heading to Sri Lanka from Tonga, sorting out the power situation is one of the easiest pre-trip wins. Below you'll find the plug types, voltage, and frequency used in Sri Lanka, whether you need an adapter, and which devices are safe to plug in.

Do you need a travel adapter for Sri Lanka?

Yes, you'll need a travel adapter. Tonga outlets use Type I plugs, while Sri Lanka uses Type D/G. Because the two don't overlap, your Tonga plugs physically won't fit Sri Lanka's sockets without an adapter. Pick one up before you leave, since airport and hotel prices are usually marked up.

What plugs and sockets does Sri Lanka use?

Sri Lanka uses these power plug types: Type D: three large round pins in a triangle, the old British standard still used in India and Nepal; Type G: three rectangular pins with a built-in fuse, the British/Irish plug. Outlets run at 230V and 50Hz. Coming from Tonga (Type I), you'll want a Type D/G adapter to match these sockets.

Voltage and frequency in Sri Lanka

Sri Lanka runs on 230V at 50Hz, very close to Tonga (240V, 50Hz). That means voltage isn't a concern here, since your appliances won't be over- or under-powered, so no voltage converter is needed.

Will your devices work in Sri Lanka?

Phones, tablets, laptops, and camera chargers are nearly always dual-voltage (100-240V), so they work in Sri Lanka with just a Type D/G plug adapter, and no converter is required. Even heat-based appliances like hair dryers and straighteners should run fine given the matching 230V supply, though it's always worth a quick label check.

What travel adapter should you buy for Sri Lanka?

For Sri Lanka, look for an adapter that converts your Type I plug to Type D/G. A universal travel adapter is the most flexible choice, since it covers Sri Lanka plus most other destinations and usually adds built-in USB and USB-C ports so you can charge several devices from one socket. If you only ever visit Sri Lanka, a dedicated Type D/G adapter is smaller and cheaper.

Tips for charging your devices in Sri Lanka

Pack at least one adapter per traveler, and consider a small power strip from home, which turns a single Sri Lanka outlet into several. Ordering online before you fly is almost always cheaper than airport kiosks.