Plug Letter Types by Country (A–O System Guide)

The Europlug (Type C) is the most widely accepted — it physically fits Type E, F, J, K, L and N sockets.

Some shapes are isolated: the UK Type G, Australian Type I, and Swiss Type J fit only their own sockets.

Type O belongs in the guide because Thailand has its own three-round-pin grounded standard, even though many Thai outlets also accept Type A/B/C plugs.

Use the checker to see the exact plug type for your destination and whether your device needs an adapter, a converter, or nothing at all.

Shape examples

Plug letters are shape labels only

Plug type helps you choose an adapter, but it does not prove voltage safety.

Type C in Europe The Europlug fits many sockets, but countries can still differ in grounding and outlet design.

Type G regions UK-style Type G is distinctive and fused, but voltage still needs the device label check.

Type A/B traps A familiar US-style shape in another country may still carry 220-230V mains.

Visual proof

Adapter markings to check

A good adapter makes socket coverage and limits explicit without pretending to convert voltage.

Socket coverage A/B · C/E/F · G · I Useful for multi-region trips; for one country, a smaller country adapter may be cleaner.

Current rating MAX 10A 250V~ This is a load limit, not voltage conversion. High-watt heat devices can still exceed safe use.

Voltage disclaimer Does not convert voltage This wording should be visible. Avoid adapters that blur adapter and converter claims.

Related guides

Guidance only — not professional electrical advice. Always confirm against your device's label before plugging in. Local wiring (especially in hotels and older buildings) can vary.