United States to Guinea-Bissau Plug Adapter
Adapter needed
Yes. Guinea-Bissau uses Type C sockets, and none of the plugs from the United States (Type A and Type B) fit, so you need a travel adapter.
Your plugs · United States
Voltage: 120 V
Sockets at destination · Guinea-Bissau
Voltage: 220 V
Voltage converter
Guinea-Bissau uses 220 V and the United States uses 120 V. Check the label on each device: if it says 100–240V it works anywhere; otherwise you need a voltage converter.
All about plugs in Guinea-Bissau →
Frequently asked questions
Do I need a plug adapter for Guinea-Bissau from the United States?
Yes. Guinea-Bissau uses Type C sockets, and none of the plugs from the United States (Type A and Type B) fit, so you need a travel adapter.
Do I need a voltage converter for Guinea-Bissau?
Guinea-Bissau uses 220 V and the United States uses 120 V. Check the label on each device: if it says 100–240V it works anywhere; otherwise you need a voltage converter.
Source: Wikidata (CC0), retrieved 2026-10-22. Plug descriptions and compatibility are our own summary of the IEC plug types. Hotels and new buildings may have other sockets — carry a universal adapter if unsure.