In United States, power plugs and sockets are types A and B. The standard voltage is 120V at a frequency of 60Hz.
A · B
Socket types
120V
Voltage
60Hz
Frequency
Socket types used in United States
For each socket below you'll also see the matching plug. These are what you'll find in the wall.
Type A
Type B
Check your plugs for United States
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Travelling from 🇬🇧 the United Kingdom to United States?
🔌 Adapter needed⚡ Voltage converter needed🕐 Frequency differs
Do your plugs fit in United States?
In United States they use sockets of types A and B. Your type G from the United Kingdom won't fit, so you need a power plug travel adapter.
A · Socket in United Statesvs
✕G · Your plug G
✕ Socket A does not fit your type G
B · Socket in United Statesvs
✕G · Your plug G
✕ Socket B does not fit your type G
Voltage & frequency
🇺🇸 United States
120V·60Hz
vs
🇬🇧 United Kingdom
230V·50Hz
Do you need a voltage converter in United States?
⚡
Mind the voltage. The standard voltage in United States (120V) is lower than in the United Kingdom (230V). Your devices may not work correctly; a voltage converter is recommended.
🕐
Frequency differs. The frequency in United States (60Hz) differs from the United Kingdom (50Hz). Be extra careful with motorised devices and items with timers or motors (clocks, shavers, some medical devices).
Many chargers (phones, laptops, cameras) are labelled INPUT: 100–240V, 50/60Hz — those work anywhere and only need a plug adapter, never a converter. Always check the label.
Frequently asked questions
What plug type is used in United States?
United States uses power sockets of types A and B. The standard voltage is 120V at a frequency of 60Hz.
Do I need a power plug adapter in United States?
Yes. If you travel from the United Kingdom you need a power plug travel adapter for types A and B sockets in United States, because your type G plugs don't fit.
Do I need a voltage converter in United States?
Yes. The voltage in United States (120V) differs from the United Kingdom (230V), so you need a voltage converter to protect your devices — unless a device is labelled 100–240V.
Learn about the plug types used in United States
See every country that uses each of these plug types:
