Travel Tips

Japan plug type: Complete adapter guide for travellers

Learn everything about the Japan plug types, voltage, and which travel adapters you need from Australia.

Japan uses Type A plugs and 100V electricity, with the frequency varying between 50Hz and 60Hz depending on the region. If you’re planning a trip to Japan soon, checking your devices’ compatibility and packing the correct travel adapter should be top priorities on your Japan packing list.

In this guide, you’ll find everything you need to know about the Japan plug type, voltage and frequency, whether you need a travel adapter or voltage converter from Australia, and where to buy one before or during your trip..

Stay connected on your trips abroad with an unlimited data travel eSIM.

In this article

What plug type does Japan use?

Japan primarily uses Type A power outlets, which have two flat, parallel pins. Type B plugs, which have two flat pins plus a round earth pin, can also be found, although Type A is the standard plug type you’re most likely to encounter.

Japan’s Type A plugs are the same basic two-flat-pin design used in the United States and Canada, so they may look familiar to travellers from North America. However, Australian Type I plugs are different, so you’ll need a travel adapter when travelling from Australia.

If you’re staying in a hotel, apartment, or other accommodation in Japan, don’t assume that every outlet will accept a three-pin plug. Many Japanese outlets are designed for Type A two-pin plugs, so bringing the appropriate adapter is the safest option.

Japan’s plug types A and B.

Voltage and frequency in Japan

The standard voltage in Japan is 100V, and the frequency varies by region.

Eastern Japan uses at 50Hz, including Tokyo and Yokohama, while Western Japan uses at 60Hz, including Osaka andKyoto.

This is particularly important for Australian travellers because Australia uses 230V at 50Hz.

Many modern electronics, including phone, tablet, and laptop chargers, support a wide input range. Check the label on your charger before plugging it into a Japanese outlet.

If the label says “INPUT: 100-240V, 50/60Hz”, the device is dual-voltage and should work with Japan’s 100V supply without a voltage converter. You’ll still need a plug adapter to make an Australian plug physically fit the Japanese outlet.

Do you need a travel adapter for Japan?

Yes, if you’re travelling from Australia. Australian appliances typically use Type I plugs, while Japan uses Type A outlets. You’ll therefore need a Type I to Type A travel adapter to connect your Australian devices to Japanese power outlets.

Here’s what travellers from different countries can expect:

From Australia or New Zealand: Yes. Type I plugs don’t match Japan’s Type A outlets, so you’ll need a Japan travel adapter.
From the UK or Ireland: Yes. Type G plugs don’t fit Japanese outlets, so you’ll need a suitable plug adapter.
From the US or Canada: Usually no adapter is needed for standard Type A plugs. However, some three-pin Type B plugs may not fit Type A-only outlets.
From most of Europe: Yes. European plug types such as Type C and Type F are different from Japan’s Type A outlets.

For Australian travellers, a Type I to Type A adapter is generally all you need to solve the plug-shape issue. A universal travel adapter can also be useful if Japan is part of a longer overseas trip.

Remember that a plug adapter only changes the shape of the plug. It does not convert voltage.

Even if you’ve sorted out your internet needs via an eSIM, a local SIM card for Japan, or a pocket WiFi for Japan, you’ll still need the right adapter to keep your devices charged.

Do you need a voltage converter for Japan?

Australian travellers may need a voltage converter, depending on the appliance.

Japan’s electricity supply is 100V, while Australia’s standard mains voltage is 230V. This means Australian appliances designed only for 220–240V may not work correctly when connected to a Japanese power outlet.

Before your trip, check the voltage rating on each appliance:

100-240V: No voltage converter is normally required. You’ll only need a plug adapter.
220-240V only: A step-down voltage converter may be required to use the appliance in Japan.
100V only: The appliance is designed for Japan’s voltage and can be used without a voltage converter, although you may still need a plug adapter depending on the plug shape.

Be particularly careful with hair dryers, hair straighteners, curling irons, and other heat-producing appliances, as these are more likely to be single-voltage devices.

For many travellers, packing a dual-voltage travel hair dryer or styling tool is more convenient than carrying a bulky voltage converter. Always check the appliance’s voltage and frequency rating before use.

Where to buy Japan travel adapters

You have several options for buying a Japan travel adapter before your trip:

Buy online: Online retailers and Australian electronics stores sell Japan-specific and universal travel adapters. Look for an adapter that accepts an Australian Type I plug and provides a Type A socket for Japan. Prices vary depending on the model and features.
Buy at the airport: If you forget your adapter, you may be able to find one at an Australian airport before departure or at an airport in Japan. However, airport options can be more limited and may cost more than buying one in advance.
Buy in Japan: Major electronics retailers such as Bic Camera and Yodobashi Camera sell travel adapters and voltage-conversion equipment in major cities. Japan’s official tourism organisation also notes that conversion plugs and transformers are available in electronics districts and major appliance retailers.

For convenience, it’s best to buy your adapter before leaving Australia and test it with your devices before your flight.

Stay connected in Japan with an unlimited data eSIM

Along with understanding and getting the correct Japan plug type, staying connected online is just as important when travelling.

You’ll need reliable mobile internet for Google Maps, translation apps, booking tickets, and sharing photos during your trip. International roaming in Japan can be expensive, and a local SIM card means searching for a shop, dealing with registration, and navigating possible language barriers.

A Holafly eSIM for Japan offers an alternative that you can arrange before leaving Australia. Buy your plan online, install the eSIM using the provided instructions, and connect to a supported network when you arrive in Japan.

Holafly’s Japan eSIM offers unlimited data, 5G speeds where available, 24/7 customer support, and Always On, which includes 1GB of backup data each month as long as you keep your eSIM installed. You can also share up to 1GB of data per day with other devices using your phone’s hotspot function.

For extended or multi-country travel, Holafly Plans offers monthly data plans with flexible options, making them useful for frequent travellers and remote workers.

For more, check out our detailed guides on:

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Violet Lee

SEO Content Specialist

Formerly a travel journalist turned marketing copywriter, I found my way back to the travel world with Holafly—my dream company that made remote work possible. My motto? “Dream big and make it happen.” I’m passionate about writing, exploring the world, and staying active through walking, running, swimming, and hiking. I also love learning, reflecting, and connecting with inspiring minds.

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