Japan operates on a 100–120V electrical system and uses the same two-flat-prong plug type found in the United States. Most outlets accept only two-prong plugs, so if your device has a three-prong plug, bring a simple three-to-two-prong adapter. These inexpensive adapters are widely available before you travel and are worth packing with your chargers.
💻 Modern Electronics
Most modern electronics—including smartphones, tablets, laptops, camera battery chargers, and USB chargers—are designed to operate on 100–240V and will work in Japan with only a plug adapter. Before traveling, check the label on your charger. If it lists Input: 100–240V, no voltage converter is required.
Older appliances such as hair dryers, curling irons, or electric razors may not support Japan’s lower voltage. Check their specifications before packing or consider bringing a travel-compatible version.
You can purchase inexpensive two-prong adapters at local hardware stores or travel accessory shops. These adapters will allow you to plug in your two-prong devices and use them in Japanese outlets safely.
In hotel rooms, you should find ample outlets to charge your devices and use electrical appliances. It’s always a good idea to carry a few adapters with you during your trip to ensure your devices stay powered and functional throughout your stay in Japan.
Drinking Water
Back to Daily Essentials