“My laptop charger said INPUT 100–240V, so I only had to check whether the wall plug fit the Japanese outlet.”
— first work night in Tokyo
Will my laptop plug fit outlets in Japan?
Japan uses Type A and Type B. Type A has two flat parallel pins; Type B adds a round grounding pin. A two-pin laptop charger from the US or Canada may fit directly, while plugs from many other countries need an adapter. Grounded three-prong chargers deserve an extra check because Type B availability can vary by building.

Japan laptop charging: Type A and Type B plug shapes
Do I need a travel adapter for my laptop in Japan?
Start with the plug on the charging cable you actually pack:
- From the US or Canada? A Type A laptop plug often fits; a Type B grounded plug may fit where a grounded socket is available.
- From continental Europe? A Type C/E/F charger plug normally needs an adapter for Japan’s A/B outlets.
- From the UK? A Type G laptop plug needs an adapter.
- From Australia or New Zealand? A Type I laptop plug needs an adapter.
- Not sure? Match the plug shape first, then check the INPUT voltage on the charger brick.
Buy a travel adapter for a laptop in Japan
If your charger plug does not fit Type A/B, a simple plug adapter is usually the lightest fix. For a multi-country trip, a universal adapter can be more convenient—but it still does not change voltage.
For laptop charging, compare a universal travel adapter that supports Japan’s A/B outlet style and leaves enough room for your charger.
→ See laptop-friendly travel adapter options on Amazon.

EPICKA Universal Travel Adapter — a practical option for Japan
Useful when your laptop charger needs a plug-shape change in Japan or when the same trip includes countries with different outlet types.
Check current price on Amazon →As an Amazon Associate, TripPlanning.org may earn from qualifying purchases, at no extra cost to you.What voltage and frequency should a laptop charger support in Japan?
Japan’s nominal supply is 100 V, with 50 Hz in part of the country and 60 Hz in other areas.
Read the INPUT line on the power brick. A label such as 100–240V ~ 50/60Hz includes Japan’s supply range; if your label shows something different, follow the charger or laptop manufacturer’s guidance.
The laptop charger handles the AC input before delivering the lower-voltage DC power the computer uses, so the charger—not the laptop battery—is the item to verify.
Do laptops need a voltage converter in Japan?
Usually not when the exact laptop charger already accepts 100 V. In that case, focus on the plug shape rather than adding a separate voltage converter.
If your charger does not include 100 V in its INPUT range, do not guess. A compatible manufacturer-approved charger is often the cleaner solution; if you consider a converter, match both voltage and wattage requirements carefully.
→ Compare voltage converter options on Amazon only if your equipment actually needs conversion.

BESTEK Travel Adapter + Voltage Converter — only when conversion is genuinely needed
Check the input range and wattage of the charger first. Do not add a converter to a laptop setup that already supports 100 V.
View on Amazon →As an Amazon Associate, TripPlanning.org may earn from qualifying purchases.Travel-friendly picks on Amazon
A few familiar travel-power extras to compare if you are packing a laptop and other electronics for Japan.

Conair Dual-Voltage Travel Hair Dryer
A folding dual-voltage dryer for travelers who are also packing a hair tool alongside their laptop setup.
View on Amazon →
Anker 735 Charger (Nano II 65W)
A compact multi-port USB-C charger that can cover phones, tablets and many USB-C laptops when its output matches the device.
View on Amazon →
Anker Zolo Power Bank 20,000mAh 30W
A 20,000mAh portable battery with USB-C for travel days; check airline rules and your laptop’s charging requirements before relying on a power bank.
View on Amazon →As an Amazon Associate, TripPlanning.org may earn from qualifying purchases.