Japan uses Types A and B plugs, 100V at 50/60Hz. Travelling from the UK you need a plug adapter and a voltage converter for appliances that are not dual-voltage. Phone and laptop chargers are usually rated 100-240V, so they only need the right plug.
| Plug type | Types A and B |
| Type A | two flat parallel pins |
| Type B | two flat pins plus a round earth pin |
| Voltage | 100V |
| Frequency | 50/60Hz |
| Travelling from | Home plug | Adapter | Voltage converter |
|---|---|---|---|
| United Kingdom | Type G, 230V | Needed | Needed for single-voltage appliances |
| United States | Types A and B, 120V | Not needed for Type A and B | Not needed |
| India | Types C, D and M, 230V | Needed | Needed for single-voltage appliances |
| United Arab Emirates | Type G, 230V | Needed | Needed for single-voltage appliances |
| Australia | Type I, 230V | Needed | Needed for single-voltage appliances |
| Canada | Types A and B, 120V | Not needed for Type A and B | Not needed |
Source: Mains electricity by country (IEC plug letters), checked 2026-10-16. Hotels may also have other sockets.
Types A and B: Type A has two flat parallel pins; Type B has two flat pins plus a round earth pin.
100V at 50/60Hz.
Yes. United Kingdom uses Type G and Japan uses Types A and B, so you need an adapter.
Not always. Both use Types A and B, so United States plugs of that type fit.
Yes. India uses Types C, D and M and Japan uses Types A and B, so you need an adapter.
Yes. United Arab Emirates uses Type G and Japan uses Types A and B, so you need an adapter.
Yes. Australia uses Type I and Japan uses Types A and B, so you need an adapter.
Not always. Both use Types A and B, so Canada plugs of that type fit.