Your plugs & sockets
Voltage
120V
Frequency
60Hz
Plugs
A, B
Plugs & sockets in Sao Tome and Principe
Voltage
230V
Frequency
50Hz
Plugs
C, F
United States to Sao Tome and Principe: Complete Plug & Adapter Guide (2026) Adapter Needed
If you're heading to Sao Tome and Principe from United States, it's worth checking the power situation before you pack. Different countries use different outlet types and electrical standards, so your devices may not plug in directly when you arrive.
United States uses Type A and B plugs, while Sao Tome and Principe uses Type C and F. Since there is no overlap, you will need a travel adapter to plug in your devices. Make sure to pick one up before your trip or at the airport.
The electrical standards differ significantly: United States operates at 120V/60Hz and Sao Tome and Principe at 230V/50Hz. For single-voltage appliances (hair straighteners, kettles, etc.), this mismatch could damage your device or even be a safety hazard. Always verify your device's voltage rating before plugging in.
Don't forget that Sao Tome and Principe hotel rooms sometimes have a universal shaver socket in the bathroom, but these low-wattage outlets aren't suitable for high-draw devices. For reliable charging, use the standard wall outlets with a proper adapter.


