How Does Electricity & Plugs Work in Japan?
Last verified: 2025-06 · Asia
1The Quick Answer
Japan uses Type A plugs (flat 2-pin) at 100V — the lowest voltage in the world. Check your device labels before use.
2What You Need to Know
Japan uses Type A flat two-pin plugs, the same physical shape as North America, so US and Canadian devices plug in without an adapter. However, the voltage is 100V (compared to 110–120V in North America and 220–240V in Europe), and the frequency differs — 50Hz in eastern Japan (Tokyo) and 60Hz in western Japan (Osaka, Kyoto). Most modern electronics, phone chargers, and laptop adapters handle 100–240V and are fine. Appliances with motors such as hair dryers, electric shavers, or curling irons from 110V or 220V countries may not work correctly or could be damaged.
3Practical Tips
Practical Tips
- 1Check your device's power label for voltage range — if it says 100–240V, you are fine without a converter
- 2Hair dryers and straighteners from home often do not work well at 100V — borrow one from your hotel instead
- 3European and Australian travelers need a Type A plug adapter, available cheaply at airports and electronics shops
Important Warning
Using incompatible appliances at Japan's 100V can damage them or cause them to overheat. Always check the voltage rating on your device before plugging in.
How does this compare?
Electricity & Plugs rules in nearby and similar countries:
Thailand uses 220V/50Hz and accepts Type A, B, and C plugs, meaning most international devices plug in without an adapter.
Singapore uses Type G British 3-pin square plugs at 230V/50Hz — US and European visitors will need a plug adapter.
India uses Type C, D, and M plugs at 230V/50Hz — carry a Type D adapter (the large 3-pin British-style round pin) as it is the most common standard.
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