Japan Plug & Voltage Checker

Japan is 100 volts everywhere, with Type A two-flat-pin outlets. Pick your plug shape, add the devices you are bringing, and read the INPUT on each label. You get a packing answer for every device.

Checked against the Japan National Tourism Organization and Japan's Ministry of Economy, Trade and Industry · October 2026
Your plug shapeLook at the pins on your charger or appliance
Where in Japan?
Your devicesFor each one, choose the INPUT voltage printed on its label or charger
Japan
Plug adapters
Voltage converters

Each device

      This checker reads what is printed on your device. If the label or manual says something different, follow the label and the manual.

      How to use

      1. 1. Pick your plug shapeLook at the plug on your charger or appliance and pick the closest picture.
      2. 2. Choose where you are goingEastern Japan uses 50Hz and western Japan (including Nagoya, Kyoto and Osaka) uses 60Hz. The voltage is 100V everywhere.
      3. 3. Add your devicesAdd each device you are bringing and choose the INPUT voltage printed on its label or charger.
      4. 4. Pack what it saysYou see which devices work as they are, which need a plug adapter, and which need a voltage converter or a Japanese product.

      Electricity in Japan

      Eastern Japan's 50Hz grid and western Japan's 60Hz grid are linked by frequency converter stations in Shizuoka and Nagano prefectures. New shinkansen models have outlets next to the window seats, and some hamburger chains and family restaurants have outlets too.

      Japan
      Voltage100V, the same everywhere
      Frequency50Hz in eastern Japan, 60Hz in western Japan (including Nagoya, Kyoto and Osaka)
      OutletsType A (two flat parallel pins)

      Sources: JNTO: Plugs & Electricity, JNTO: FAQ, Ministry of Economy, Trade and Industry: energy education material (Japanese, PDF)

      How to read the label

      • Find INPUT on the charger, power brick or the label on the device. For example: INPUT: 100-240V ~ 50/60Hz.
      • If the range includes 100V, the device works on Japan's voltage.
      • If it says 110-120V only, Japan's 100V is below the printed range. The label does not promise it works.
      • If it says 220-240V only, it needs a voltage converter that raises 100V to the device's voltage and is rated above the device's watts, or use a Japanese 100V product instead.
      • The Hz part matters for some devices with motors or clocks.

      Sources: JNTO: Plugs & Electricity

      Plug adapter or voltage converter?

      A plug adapter only changes the shape of the pins so the plug fits a Type A outlet. It does not change the voltage. A voltage converter (transformer) changes the voltage. Hair dryers and hair straighteners draw a lot of power, so a converter for them has to be rated for that many watts; JNTO notes that dual-voltage hair dryers work anywhere in Japan. In Japan, plug adapters and transformers are sold in Akihabara in Tokyo, Nipponbashi in Osaka and at large electronics stores such as Yodobashi Camera and Bic Camera.

      Sources: JNTO: Plugs & Electricity

      FAQ

      What voltage does Japan use?

      100V, the same everywhere in Japan. The frequency is 50Hz in eastern Japan and 60Hz in western Japan, including Nagoya, Kyoto and Osaka.

      What plug type is used in Japan?

      Type A, with two flat parallel pins.

      Do I need a converter for my phone charger in Japan?

      Check its INPUT. If it says 100-240V, it includes Japan's 100V and needs no converter. If your plug is not Type A, you only need a plug adapter.

      Can I use a 110V device in Japan?

      Check the label. If it says 110-120V only, Japan's 100V is below the printed range and the maker does not promise it works. If it says 100-240V, it includes 100V and works.

      Will my hair dryer work in Japan?

      Check its label. A dual-voltage dryer that includes 100V works. A 220-240V-only dryer needs a converter rated for its watts, or use a dryer in Japan.

      Does a plug adapter change the voltage?

      No. It only changes the shape of the pins. To change the voltage you need a voltage converter.

      Where can I buy a plug adapter in Japan?

      JNTO lists electronics areas such as Akihabara in Tokyo and Nipponbashi in Osaka, and large electronics stores such as Yodobashi Camera and Bic Camera.

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