Power Adapter for Japan: Plugs, Voltage & What to Pack (2026)

Japan uses Type A and B plugs at 100 V (50/60 Hz). Here is what that means for your chargers, and the one thing to check before you buy an adapter.

Japan at a glance

Plug type(s)	Type A and B
Voltage	100 V
Frequency	50/60 Hz

Do you need an adapter?

Travelers from the US/Canada share Type A but should note Japan's lower 100 V. Visitors from the UK, EU and Australia need a plug adapter.

Japan runs at 100 V — the lowest mains voltage in the world. Most dual-voltage electronics cope fine, but check anything with a heating element.

Adapter vs voltage converter — the part people get wrong

A plug adapter only changes the shape of the pins so your plug fits the socket. A voltage converter changes the electricity itself. The good news: most travel electronics — phones, laptops, tablets, camera and most modern chargers — are dual-voltage, rated 100–240 V. For those you need only a plug adapter, even in Japan. Look for "INPUT: 100–240V" printed on the charger. Single-voltage appliances (some hair dryers, straighteners, small kettles) are the ones that may need a converter — or are better bought locally.

Universal travel adapter (USB-C)

A single universal adapter with USB-C Power Delivery covers Japan and most other destinations, and charges a phone and laptop from one socket. The most useful sub-$40 item for international travel.

Browse universal adapters on Amazon

Before you fly

Pack one universal adapter rather than several country-specific ones.
Confirm each charger says 100–240 V — if so, no converter needed.
Bring a small power strip to turn one adapter into several outlets.

FAQ: power and plugs in Japan

What plug type does Japan use?

Japan uses Type A and B plugs at 100 V, 50/60 Hz. If your devices use a different plug type, you will need a travel plug adapter.

Do I need a voltage converter for Japan?

Japan runs at 100 V. Most modern phones, laptops and camera chargers are dual-voltage (rated 100–240 V) and need only a plug adapter, not a converter. Check the small print on your charger — if it says 100–240 V, you are fine. Single-voltage items such as some hair tools may need a converter.

Will my phone charger work in Japan?

Almost certainly, with the right plug adapter. Phone and laptop chargers are nearly always dual-voltage, so they handle Japan's 100 V supply; you just need an adapter that fits a Type A and B socket.

Gently Yonder tip: Reference data like plug types and voltage is stable, but hotels and new builds vary. If a socket doesn't match, hotel reception almost always keeps spare adapters at the desk.

Disclosure: this page contains affiliate links. As an Amazon Associate, Gently Yonder may earn from qualifying purchases at no extra cost to you. Plug and voltage data is provided as general preparation guidance — always check your device labels and confirm locally.