Power Sockets and Voltage

Japan uses Type A and Type B electrical outlets. If you're traveling from a country with different types of outlets, you may need an adapter to connect your devices.

Type A is the most common plug type in Japan. 

• Used for: Simple devices like chargers for phones, laptops, and cameras.
• Shape: Two flat parallel prongs.

Type B plug is used for grounded devices and offers additional safety. 

• Used for: Large electronic home appliances such as washing machines, refrigerators, and other power-hungry devices.
• Shape: Two flat prongs and a third round prong for grounding.

Japan has a relatively low voltage - 100V - compared to many other countries. For example, in the United States, the standard is 110V, and in Europe, it's around 220V.

Tip: If you're bringing electronics from countries with a higher voltage, you’ll need to check if your device can handle 100V. Most modern electronics (like phone chargers and laptops) are designed to work with a wide range of voltages (from 110V to 240V).

Adapter

If your plugs are of a different type (e.g., Type C or Type G), you will need an adapter to use your electronics in Japan. You can buy universal travel adapters that are compatible with multiple plug types, or simply purchase a Japan-specific adapter.

Where to Buy Adapters in Japan?

Airport shops: Major international airports like Narita and Haneda sell travel adapters.
Electronics stores: Shops like Bic Camera, Yodobashi Camera, and Don Quijote often carry travel adapters.
Convenience stores: Some 7-Eleven and Family Mart locations may carry basic adapters.

Converters vs. Adapters: What's the Difference?

• Adapter allows you to plug your device into a different socket type (e.g., Type A or Type B).
• Converter changes the voltage to match what your device needs. You only need a voltage converter if your device is not compatible with Japan's 100V system. For example, many hairdryers and electric razors might require a voltage converter.

Tip: Check your device’s power brick (the small box on your charger) to see if it can handle a 100V input. If it says something like “100-240V”, you're safe to plug it into Japanese sockets without a converter. 

Practical Charging Tips While Traveling in Japan

Hotels and Hostels: Most hotels and guesthouses in Japan provide universal plug sockets or USB charging ports for guests. Be sure to check with your accommodation before your trip to confirm.

Charging in Trains: If you're traveling on the Shinkansen, some trains have power outlets at the seats, but it's not guaranteed on every train. It's a good idea to charge devices before boarding if you're unsure.

Public Charging Stations: Many public places such as shopping malls, coffee shops, and airport terminals have free charging stations. Keep an eye out for the little charging icons to locate them. However having a power bank will give you the freedom to charge on the go without hunting for an outlet.

Rent a Power Bank: There are Power Bank Rental Stations in popular areas like Tokyo Skytree, Shibuya, and Shinjuku in Tokyo. Train stations and airports often have rental stations as well, and some convenience stores may also offer rental services. Some power bank rental services use mobile apps (like ChargeSPOT, mobike, or RentaCharge) for easy reservation and payment. You can use these apps to locate nearby rental stations and unlock the power bank.