The essentials in 30 seconds
- 1
Type A outlet, no ground pin
Two flat parallel prongs, identical to standard US outlets. No direct compatibility with European round-pin plugs.
- 2
100 volts, not 220-240 volts
Japanese voltage is nearly half of European voltage. A non dual-voltage appliance will run underpowered or not at all.
- 3
USB chargers and laptops: no issue
Nearly all phone, tablet and laptop chargers accept 100-240V. Only a shape adapter is needed.
- 4
Watch out for heated appliances
Non dual-voltage hair dryers, straighteners and electric razors risk burning out or not working properly on 100V.
- 5
50Hz in the east, 60Hz in the west of the country
Tokyo runs on 50Hz, Osaka and Kyoto on 60Hz. No impact for most modern electronic devices.
Common device compatibility
What works with a simple adapter, and what needs more.
| Device | Works with adapter alone? | Detail | ||
|---|---|---|---|---|
| Smartphone / tablet charger | Yes | Nearly all dual-voltage 100-240V | ||
| Laptop charger | Yes | Check the rating printed on the power brick | ||
| Camera / power bank | Yes | Dual-voltage in the vast majority of cases | ||
| Hair dryer | No (often) | Pack a dual-voltage travel model or buy one locally | ||
| Straightener / curling iron | No (often) | Same note as hair dryers | ||
| Electric razor | Varies | Check for a 100-240V rating, otherwise a converter is needed |
Japan power plug 2026: type, adapter, voltage
Japan uses type A outlets, the same flat parallel prongs used in the United States or Canada, at 100V. That’s incompatible with European or UK plugs (round or triple-pin, 220-240V). Here’s what you actually need to check before leaving.
Plug type and voltage
Japan runs on type A outlets (two flat parallel prongs, no ground pin) and, more rarely, type B (identical but with an extra ground pin). Standard voltage is 100V, nearly half of the 220-240V used across most of Europe.
Another lesser-known quirk: Japan uses two different frequencies depending on the region.
- 50Hz in the east of the country: Tokyo, Yokohama, Sendai, Sapporo
- 60Hz in the west: Osaka, Kyoto, Nagoya, Hiroshima
This frequency difference has almost no impact on modern electronic devices, which adjust automatically.
What works with a simple adapter
The basic rule: check the rating printed on your device’s power brick or charger. If you see “INPUT 100-240V”, it’s dual-voltage and will work in Japan with a simple shape adapter, no loss of power and no risk.
That’s the case for nearly all of the following:
- Smartphone and tablet chargers
- Laptop chargers
- Camera and power bank chargers
- Recent handheld gaming consoles
In these cases, only a shape adapter (round or triple-pin plug to Japanese flat-pin outlet) is needed. It costs a few euros and fits easily in a travel pouch.
What needs more than an adapter
Appliances that generate heat or run on a powerful motor are often designed for a single voltage. On 100V instead of 220-240V, they can:
- Run well below their normal capacity (a hair dryer that barely heats up)
- Not start at all
- In rare cases, get damaged if the voltage isn’t properly managed by the device
This mainly concerns:
- Non dual-voltage hair dryers
- Hair straighteners and curling irons
- Some older electric razors
Simplest solution: travel with dual-voltage travel appliances (often labeled “dual voltage” or “worldwide voltage”), or buy the appliance locally in Japan if the length of stay justifies it. Major electronics chains like Bic Camera or Yodobashi Camera offer reasonably priced models.
Where to find an adapter
A Japan plug adapter is easy to buy:
- Before departure, at any electronics or luggage store back home
- At the departure or arrival airport
- On site, at convenience stores (Lawson, 7-Eleven, FamilyMart) or major electronics stores
Consider a universal adapter with built-in USB ports if you’re traveling with many devices, handy since a Japanese hotel room sometimes only has 2 or 3 accessible outlets.
Special case: outlets in hotels and ryokans
Large international hotels sometimes offer universal outlets or an adapter at the front desk on request. Traditional ryokans and small independent properties, on the other hand, only have standard Japanese outlets. Don’t count on an adapter being systematically available on site: the most reliable option remains packing your own.
Other practical info Japan
- Visa : 90-day exemption for French and EU nationals
- Time difference : +7h / +8h from Paris
- Currency (¥ Yen) : exchange and cards
- Budget : how much to plan per day
Page written by Marie L., Southeast Asia and Japan specialist, editor-in-chief of L’Heure du Voyage. 12 years of experience, regular stays in Tokyo since 2015. Updated: July 28, 2026. Verified by 2 experts.
Sources
FAQ
Do you need a plug adapter to travel to Japan? +
Can a European or UK phone charger plug directly into Japan with just an adapter? +
Does a European hair dryer work in Japan? +
Does the 50Hz vs 60Hz difference cause any problem? +
Do Japanese hotels have universal outlets? +
Where can you buy an adapter if you forgot yours? +
Marie Laurent
Verified authorSoutheast Asia specialist · 12 years experience.