In Japan, power plugs and sockets are types A and B. The standard voltage is 100V at a frequency of 50/60Hz.
A · B
Socket types
100V
Voltage
50/60Hz
Frequency
Socket types used in Japan
For each socket below you'll also see the matching plug. These are what you'll find in the wall.
Type A
Type B
Check your plugs for Japan
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Travelling from 🇺🇸 the United States to Japan?
✓ Your plugs fit✓ Voltage compatible
Do your plugs fit in Japan?
Good news — at least one of your plug types from the United States fits the sockets in Japan, so you don't strictly need an adapter (though a universal adapter is handy if you travel often).
A · Socket in Japanvs
✓A · Your plug A✕B · Your plug B
✓ Fits your A plug
B · Socket in Japanvs
✓A · Your plug A✓B · Your plug B
✓ Fits your A / B plug
Voltage & frequency
🇯🇵 Japan
100V·50/60Hz
vs
🇺🇸 United States
120V·60Hz
Do you need a voltage converter in Japan?
✅
No voltage converter needed. The voltage in Japan (100V) is the same as what your devices use at home in the United States (120V), so a voltage converter is not needed.
Many chargers (phones, laptops, cameras) are labelled INPUT: 100–240V, 50/60Hz — those work anywhere and only need a plug adapter, never a converter. Always check the label.
Frequently asked questions
What plug type is used in Japan?
Japan uses power sockets of types A and B. The standard voltage is 100V at a frequency of 50/60Hz.
Do I need a power plug adapter in Japan?
If you travel from the United States, your plugs already fit the sockets in Japan, so you don't strictly need an adapter.
Do I need a voltage converter in Japan?
No. The voltage in Japan (100V) is compatible with the United States (120V), so no voltage converter is needed.
Learn about the plug types used in Japan
See every country that uses each of these plug types:
