Sao Tome and Principe to Japan: Complete Plug & Adapter Guide (2026) Adapter Needed

Heading from Sao Tome and Principe 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 Sao Tome and Principe 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. Sao Tome and Principe uses 230V 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.

When packing for Japan, bring at least one adapter per room if you're traveling with others. Airport shops often sell them at a markup, so ordering one online beforehand saves money. A small power strip from home can also multiply a single adapter into several outlets.