Japan uses power sockets of types A and B, so you'll need plugs that fit these outlets. The voltage in Japan is 100 V, with a frequency of 50 / 60 Hz. To avoid damaging your electrical devices, check if you need a voltage converter.
Follow the instructions at the top of this page and select your home country to find out whether you need a travel adapter or voltage converter.
In Japan, plug type A and B is used. Plug type A has two flat parallel pins and plug type B has two flat parallel pins and a grounding pin.
Japan has a standard voltage of 100 V and a frequency of either 50 or 60 Hz.
See what power plug and socket types are used in other countries
Europe60
Asia52
North America42
Oceania29
Africa58