Germany to Japan plug adapter: plugs and voltage compared

No. The German National Tourist Board (GNTO) names Type F (round pins) for Germany. Japan's outlets take Type A plugs with two flat pins (JNTO), so bring a plug adapter to Type A. Japan runs on 100V and Germany on 230V.

Updated October 3, 2026

230Vin Germany

50Hzin Germany

429,479visitors from Germany in 2025

Plug adapter needed

Germany and Japan side by side

Germany: 230V and 50Hz. Japan: 100V, 50Hz in the east and 60Hz in the west.

Voltage, frequency and plug in Japan and Germany (official pages, checked 2026-10-03)
	Japan	Germany
Voltage	100V JNTO	230V Federal Republic of Germany (gesetze-im-internet.de)
Frequency	50Hz east, 60Hz west JNTO	50Hz Federal Republic of Germany (gesetze-im-internet.de)
Plug	Type A, two flat pinsPanasonic lists Type A and B JNTO	Round pins (Type F) German National Tourist Board (GNTO)

Who says what about electricity in Germany

Official sources for voltage, frequency and plug in Germany, and what each one states
Source	What it states	Kind
Federal Republic of Germany (gesetze-im-internet.de)Low Voltage Connection Ordinance (NAV), § 7	Voltage: 230V; frequency: 50Hz Source	Government
German National Tourist Board (GNTO)Resource guide for travel advisors (USA)	Voltage: 230V; plug: Type F Source	Tourism board

What to pack in Germany for Japan

Round pins from Germany need a Type A adapter in Japan.

Round pins: a plug adapter to Type A. Source: German National Tourist Board, GNTO.
Each device from Germany: read INPUT. 100-240V covers Japan's 100V; 230V alone needs a voltage converter (JNTO).
Germany: 50Hz. Tokyo: 50Hz. Osaka: 60Hz. A 50/60Hz label covers all three.

Why Germany is grouped with round pins: The Seoul Tourism Organization writes “the same types used in Germany, France, Austria, Greece, Turkey, Spain”.

Flow chart for travellers from Germany: does the plug have two flat pins, and does INPUT include 100V? If not, bring a plug adapter or a voltage converter.

Figure by japan-japan.com from JNTO: Plugs and Electricity.

What official pages in Germany say

3 statements from the German National Tourist Board (GNTO) and the Federal Republic of Germany (gesetze-im-internet.de).

German National Tourist Board (GNTO)Electricity: Standard voltage is 230 volts, and an adapter for a Type F plug is required.Resource guide for travel advisors (USA)

Federal Republic of Germany (gesetze-im-internet.de)Die Spannung beträgt am Ende des Netzanschlusses bei Drehstrom etwa 400 oder 230 Volt und bei Wechselstrom etwa 230 Volt.Low Voltage Connection Ordinance (NAV), § 7

In English: At the end of the connection the voltage is about 400 or 230 V for three-phase and about 230 V for single-phase AC.

Federal Republic of Germany (gesetze-im-internet.de)Die Frequenz beträgt etwa 50 Hertz.Low Voltage Connection Ordinance (NAV), § 7

In English: The frequency is about 50 hertz.

Visitors from Germany in 2025

Germany ranked 16th among countries and regions, with 429,479 visitors to Japan in 2025 (JNTO, final figures).

Visitors in 2025: 429,479
Rank: 16th
Share of all visitors: 1%
Change from 2024: +31.8%

Frequently asked questions

Do I need a plug adapter in Japan from Germany?

No. The German National Tourist Board (GNTO) names Type F (round pins) for Germany. Japan's outlets take Type A plugs with two flat pins (JNTO), so bring a plug adapter to Type A.

Is Japan's voltage the same as Germany's?

No. Japan uses 100V (JNTO); Germany uses 230V, according to the Federal Republic of Germany (gesetze-im-internet.de).

Do I need a voltage converter in Japan from Germany?

Only for devices rated for 230V alone that are not dual-voltage (JNTO). A charger from Germany marked 100-240V needs none.