Will my Croatia plug work in Japan?

No. None of your Croatia plugs (Type C, Type F) fit in Japan sockets (Type A, Type B), so you will need a travel adapter.

What plug type does Japan use?

Japan uses Type A, Type B. The supply is 100V at 50Hz / 60Hz.

Do I need a voltage converter for Japan when travelling from Croatia?

Japan runs on 100V, while Croatia uses 230V. Check your charger label for a 100 to 240V rating; if it does not list 100V you will also need a voltage converter.

Is the electrical frequency in Japan the same as Croatia?

Frequency in Japan is 50Hz / 60Hz, while Croatia uses 50Hz. Modern phone and laptop chargers handle either, but clocks, motors, and some heating appliances may behave incorrectly.

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From Croatia to Japan

No plugs match

When travelling from Croatia to Japan: None of your Croatia plug types fit in Japan. You will need a travel adapter. Voltage is different (230V → 100V). Check your charger label; if it doesn’t list 100V you’ll also need a voltage converter. Frequency differs (50Hz → 50Hz / 60Hz). Modern phone and laptop chargers are usually fine, but some clocks, motors, and appliances may behave incorrectly.

Croatia

→

Japan

Your plugs

Type C

No fit

Type F

No fit

Accepted in Japan

Type A

Type B

0 of 2 plug type(s) match

You: C, F • Japan: A, B

No fit for: C, F

Voltage: 230V → 100V

Different voltage

You may need a voltage converter.

Frequency: 50Hz → 50Hz / 60Hz

Different frequency

Check device supports both 50/60 Hz.

You will need an adapter and likely a converter

Adapters you may need

Your plug shape does not fully match. Voltage differs; check for 100–240V support.

Browse adapters for Japan

About electricity in Japan

Japan uses 100V with both 50Hz (east of the Fuji River, including Tokyo) and 60Hz (west, including Osaka). Sockets are Type A and B.

Grid & history

Japan’s split-frequency grid is a 19th-century legacy: Tokyo bought German 50Hz generators while Osaka bought American 60Hz ones, and the two never unified. Frequency converters now straddle the boundary. Post-Fukushima, nuclear is partially restarting while gas and coal still dominate.

Availability

Reliability is very high in cities. Typhoons and earthquakes cause regional outages.

Sockets & hotels

Many older sockets are ungrounded Type A, while newer buildings have grounded Type B for high-draw appliances.

Energy mix

Renewables20%

Fossil70%

Nuclear10%

Nuclear share fluctuates as more reactors return to service.

Practical tips

US flat-pin plugs (Type A) fit Japanese outlets directly, so most travellers do not need an adapter.
Voltage is 100V, which is slightly lower than the US 120V. Modern chargers handle this without issue, but heating appliances may run weak.
If your gear is frequency-sensitive (clocks, some motors), check whether you will be in 50Hz or 60Hz territory.

Need an adapter?

Find reliable travel adapters for JP on Amazon.

Browse adapters on Amazon →

Frequently asked questions

Will my Croatia plug work in Japan?: No. None of your Croatia plugs (Type C, Type F) fit in Japan sockets (Type A, Type B), so you will need a travel adapter.
What plug type does Japan use?: Japan uses Type A, Type B. The supply is 100V at 50Hz / 60Hz.
Do I need a voltage converter for Japan when travelling from Croatia?: Japan runs on 100V, while Croatia uses 230V. Check your charger label for a 100 to 240V rating; if it does not list 100V you will also need a voltage converter.
Is the electrical frequency in Japan the same as Croatia?: Frequency in Japan is 50Hz / 60Hz, while Croatia uses 50Hz. Modern phone and laptop chargers handle either, but clocks, motors, and some heating appliances may behave incorrectly.