Japan uses Type A plugs at 100 volts. Most modern electronics are compatible without a voltage converter. Here is exactly what adapter you need and what to watch out for.
Japan’s electrical system is one of the simplest topics to research before a trip, yet it still catches visitors off guard. The key facts: Japan uses Type A plugs (two flat, parallel pins, the same as in North America), operates at 100 volts (lower than most other countries), and runs at either 50 Hz (eastern Japan, including Tokyo) or 60 Hz (western Japan, including Osaka). Here is what this means for your devices.
Japan Plug Type and Voltage
- Plug type: Type A, two flat parallel pins, no grounding pin
- Voltage: 100V (lower than the 110-120V of North America and the 220-240V of Europe, UK, and Australia)
- Frequency: 50 Hz in eastern Japan (Tokyo), 60 Hz in western Japan (Osaka, Kyoto, Hiroshima)
Do You Need an Adapter?
North American Devices (US and Canada)
No adapter needed. North American Type A plugs fit directly into Japanese sockets. The voltage difference (100V Japan vs 110-120V North America) is small enough that virtually all modern electronics handle it without issue. Check your device’s power brick label for ‘100-240V’ input. If you see this, you are fine. Almost every modern charger, laptop, and phone charger shows this range.
European Devices (Type C, E, F)
You need a Type C/E/F-to-Type A adapter. European plugs do not fit Japanese sockets. Additionally, European devices are designed for 220-240V, and Japanese sockets provide 100V. Check your device’s power brick: if it shows ‘100-240V input’, a simple adapter is sufficient. If it shows ‘220-240V only’, you need a voltage converter, which is bulkier and more expensive.
Most modern electronics (laptop chargers, phone chargers, camera chargers) show ‘100-240V’ and only need an adapter.
UK Devices (Type G)
Same situation as European. A Type G-to-Type A adapter is needed. Most modern UK electronics are ‘100-240V’ and only require the adapter, not a converter.
Australian Devices (Type I)
A Type I-to-Type A adapter is needed. Most Australian modern electronics are ‘100-240V’ and only require the adapter.
What Adapter to Buy
A universal travel adapter covering Type A, C, G, and I inputs is the most practical single purchase. These are available from Amazon, electronics shops, and most airport terminals for around 15-30 CAD. They are compact and cover Japan, plus most other travel destinations.
Alternatively, a Japan-specific TypeC/G/I-to-Typee A adapter is available for around 5 to 10 CAD if you are only visiting Japan.
Buy before you go: Adapters are available at Narita and Haneda airports, at Don Quijote stores throughout Japan, and at most electronics shops. However, airport adapters are expensive and the selection at convenience stores is limited. Buying before departure is easier and cheaper.
What About Grounded Devices (Three-Pin)?
Some devices have a three-pin plug with a grounding pin. Japan’s Type A sockets are two-pin only. You need an adapter that drops the grounding pin. These are available (sometimes called ‘grounding adapters’ or ‘3-to-2 adapters’) and are safe for use with most consumer electronics. Professional audio or medical equipment may have specific grounding requirements.
Power Banks and Charging on the Go
Japanese trains do not have power outlets at every seat (Shinkansen reserved seats usually do, local trains usually do not). A portable battery bank (power bank) is strongly recommended for a full day of navigation, photography, and translation. A 10,000 mAh bank provides roughly 2 to 3 full phone charges. Bring one charged from home.
Japanese convenience stores sell power banks in emergencies (around 1,500 to 2,500 yen for basic models). The rental kiosk company ChargeSPOT has charging ports at convenience stores and restaurants across Japan for around 165 yen per 30 minutes.
