Japan Electrical Outlet vs. US: What’s the Difference?

Japan Electrical Outlet vs. US: What’s the Difference?

Are you planning a trip to Japan or the US? It’s important to be aware of the different electrical outlets used there. This article will provide vital information on Japan Electrical Outlet vs. US, so you can safely use your appliances in both countries without any issues.

Which power outlets do they use in Japan?

In Japan, the power outlets are two-pronged plugs with rounded edges. The standard plug type used in Japan is called a Type A Plug, which you may have seen before. It has two flat prongs and a round grounding prong at the bottom. This is different from most other countries that use three-pronged plugs with rectangular shaped edges. [1]

Which power outlets do they use in Japan?

What kind of power adapter do I need for Japan?

If you’re visiting Japan, you will likely need to purchase an appropriate power adapter for your devices.

The outlets in Japan are two-pronged and shaped differently than American outlets. This means that even if you have a dual voltage device, it won’t fit into the outlet without an adapter.

It’s important to know that most appliances purchased in the United States will need a voltage adapter, as Japanese outlets only provide 100 volts. This means that if your device is designed for 110-120 volts, you’ll need an adapter to ensure it works properly. It’s also important to note that most appliances and products sold in Japan are designed for this voltage. [1]

Voltage and Plugs

The electrical outlet in the United States produces 110-120 volts of electricity while Japan operates on 100 volts. The plugs for both countries are different and you will need an adapter to use any appliance brought from outside of the country with you. US plug outlets have two flat pins that look like a “T” (Type A) while Japanese outlets have two flat parallel pins (Type A) and two parallel round pins (Type B). [1]

Electric Current

The voltage in Japan is 100 volts AC, which is different from the 120 volts AC used in North America. The frequency of alternating current (AC) in Japan is 50 Hz compared to 60 Hz used in the US. Additionally, if you plan on bringing your own appliances or electronic gadgets to Japan, make sure they are compatible with both the voltage and frequency. [3]

Plug Types

The plug type in Japan is Type A, and it has two flat pins without a grounding pin. This plug type is not compatible with the standard US plugs which have three prongs (two flat parallel blades with a round third prong). If you’re traveling to Japan, you’ll need an outlet adapter that can convert a US plug to the Japanese Type A outlet. [3]

Plugs and Sockets

The main difference between Japanese and US electrical outlets is the shape of the plugs and sockets. In Japan, plugs are typically two-pronged, with one being a flat blade while the other is a round pin. Meanwhile, American outlets use a three-pronged plug—two flat blades and a round pin. [3]

Plugs and Sockets


Another important thing to consider when it comes to Japan Electrical Outlets vs. US outlets is the hertz (Hz). The standard frequency in Japan is 50 Hz, while in the US it’s 60 Hz. Depending on your device, you may need an adapter or converter that can accommodate both frequencies. If you’re using a low-power device, such as a phone charger or laptop adapter, you could probably get away with using an adapter. However, if you’re using an appliance like a hair dryer or electric razor, it’s best to invest in a converter that can handle both frequencies. Keep in mind that converters are usually bulkier and more expensive than adapters. [3]

Packing an Adapter

When planning a trip to Japan, it’s important to know that the electrical outlet system is quite different from the outlets in the United States. The sockets are Type A and/or Type B, and they require larger prongs than those found on most American plugs. As such, if you plan on taking any electronics with you on your travels, you’ll need a power adapter that is compatible with the Japanese electrical outlets.

The good news is there are plenty of options when it comes to finding a suitable adapter for your trip. If you’re looking for something lightweight and inexpensive, there are basic plug adapters available that will do the job. However, if you plan on using multiple devices at once, you may want to invest in a more powerful adapter with multiple outlets. [2]


Before we dive into the difference between Japan and US electrical outlets, it’s important to remind everyone about safety. If you’re planning to use your electronics in either country, make sure that all of your devices are compatible with the voltage requirements of the outlet. This will protect both your device and yourself from any mishaps or accidents.

Also, consider investing in an adapter or power converter if you anticipate using your device in multiple countries. This will help keep you safe and prevent any potential damage to the device.


Finally, it’s a good idea to check with local authorities for official advice on safety practices before operating any electrical devices. By taking these precautions, you can make sure that your trip is safe and enjoyable. [2]


When it comes to plugging in your electronic devices, it is important to be aware of the differences between Japan electrical outlets and those found in the US. Before using any kind of adapter or converter, make sure you read up on all safety information and cautions related to that particular product. Additionally, always double-check whether an outlet can handle the wattage of your device before plugging it in. It is important to remember that adapters and converters can get hot during use, so never leave a plugged in device unattended. Lastly, be sure to unplug all devices before leaving the house or hotel room!

When using an adapter or converter, check for any signs of damage such as frayed wiring or broken plugs. If you detect any damage, do not use that adapter and find a replacement immediately. Additionally, always be sure to unplug the device when you are done using it; otherwise, the current could overload and cause a fire or other safety hazard. [2]

Power Adapter Recommendations

Cheater Plug

If the standard plug adapter isn’t an option for you, or if you just want to make sure your device will stay securely in place, then a cheater plug is a great solution. The cheater plugs basically allow a US-style outlet to accept Japanese-style plugs. You simply attach one of these adapters onto your US outlets and voila! You’re all set to plug in your Japanese device.

The only downside is that these plugs don’t work with surge protectors, and they aren’t as secure or reliable as a full-length adapter. That said, they are easy to install and widely available from electronics stores or online retailers like Amazon. [4]

Power Adapter Recommendations

Plug Extender

If you don’t need or want the full-length adapters, but you still need a way to connect your devices, then a plug extender is another great option. This type of adapter is basically just an extension cord that has a Japanese plug on one end and a US outlet on the other. You simply plug it into your wall outlet and then plug your device’s cord into the Japanese plug at the other end.

The great thing about these adapters is that you can use them with surge protectors and they are very secure. The only downside is that they don’t always fit in every wall outlet, so it’s important to check to make sure yours will fit before buying one. [4]

Global Travel Adapter

If you’re a frequent traveler, then a global travel adapter is definitely the way to go. These adapters have multiple prongs that can be used with many different types of outlets around the world, so you don’t have to worry about finding the right adapter for each country you visit. They also come in both full-length and compact versions, so you can choose the one that’s right for you.

The downside of these adapters is that they are usually quite expensive and don’t always offer the best connections. So if you’re just planning to use your devices in Japan or the US, then it may be better to stick with a standard plug adapter or cheater plug. [4]


Do US electrical plugs work in Japan?

The short answer is no. US plugs won’t fit into a Japanese outlet, because the prongs are of different sizes and shape. However, you can bring a universal adapter that will allow you to plug in your appliance.

Can I use an EU plug in Japan?

Yes, you can use an EU plug in Japan. With the right adapter, you’ll be able to plug in your appliance without any issue.

Does Japan have different wall outlets?

Yes, Japan has different wall outlets from the US. The Japanese style plugs have two flat and one rounded prong while the US style plugs feature two flat and one round prong.

What outlet style is Japan?

The outlet style used in Japan is called Type A. It features two round and one flat prong.

Can you plug Japanese appliances in us?

Yes, you can plug Japanese appliances in US sockets. However, you may need a special adapter if the appliance is built for 100V while US sockets are 110-125V. Also, make sure that the wattage of your appliance does not exceed the outlet’s capacity.

Does Japan use different voltages?

Yes, Japan mainly uses 100V while in the US 110-125V is used. So if you want to plug a Japanese appliance into a US socket, make sure that it has the right voltage.

Is Japan’s electricity the same as ours?

No, Japan uses 100V while in the US 110-125V is used. Make sure to check the voltage of your appliance before plugging it in a Japanese outlet.

Can I plug a 110V into a 220V?

No, you should never plug a 110V appliance into a 220V outlet or vice versa. Doing so may damage the appliance and even cause an electrical fire. Always make sure that the voltage of your appliance is compatible with the power outlets in your destination.

Can I use my US iPhone charger in Japan?

Yes, you can use your US iPhone charger in Japan as long as it is has a Type A plug.

However, make sure that the voltage of the charger is compatible with the outlet – Japanese outlets are 100V while US ones are 110-125V.

Useful Video: Types of Power Plugs in Different Countries


When it comes to electrical outlets, the main difference between Japan and the US is the shape and voltage of the plug. In addition, adapters may be needed in order to use certain devices from one country in another. It is always important to check for compatibility before attempting to use a device with an unfamiliar outlet type.

However, this does not need to be a barrier to travelling or moving between the two countries. By being aware of the difference in outlet types and making sure you have the correct adapter, it’s possible to use your devices safely and with ease.

We hope that this article has been helpful and that understanding Japan electrical outlets vs. US outlets is now a lot easier for you!


  1. https://www.allgetaways.com/car-rv-travel/convert-120v-220v.html
  2. https://japanandmore.com/japan-travel-power-adapter/
  3. https://www.asherfergusson.com/japan-power-adapter/
  4. https://whatplug.info/from/usa/to/japan