South Korea to Japan: Complete Plug & Adapter Guide (2026) Adapter Needed

Heading from South Korea to Japan? Plug types and voltage standards differ between countries, so a little preparation goes a long way. Here's a breakdown of what to expect at the wall socket.

Your South Korea plugs (Type C, F) won't fit Japan's outlets (Type A, B). You'll want to grab a universal travel adapter or one specifically designed for Japan before you depart.

Voltage is another key difference. South Korea uses 220V while Japan uses 100V. If your device only supports one voltage, using it with the wrong supply could cause overheating or permanent damage. Look for "Input: 100-240V" on your charger. Most modern phone and laptop chargers support this range.

Most modern phone chargers, laptop adapters, and camera chargers are designed to handle 100-240V input, so they'll work anywhere with just a plug adapter. Heat-producing appliances like hair dryers and flat irons are often single-voltage, so check before you plug them in abroad.