Power Plugs & Voltage in USA
In USA, the standard voltage is 120V at 60Hz, and plug types A, B are used.
Your plugs (Type A, Type B) fit USA's sockets directly.
Same as home. Any device that works there works in USA.
Check your charger Most phone, laptop and camera chargers are dual-voltage (look for “INPUT: 100–240V” on the label). Those only ever need a plug adapter, never a voltage converter. High-wattage items with heating elements (hair dryers, straighteners, kettles) are the usual exception.USA mains: 120V, 60 Hz.
Note The United States runs at 120V 60 Hz with Type A (2-pin) and B (3-pin, grounded) plugs. The same standard covers Canada.
Plug types in USA
2 flat parallel pins (ungrounded, North America / Japan)
2 flat pins + a round grounding pin (North America)
Many modern chargers, laptops, phones and cameras are dual-voltage: their label reads INPUT: 100–240V. Those work anywhere in the world with just a plug adapter — no voltage converter needed. Only single-voltage, high-wattage devices (hair dryers, travel kettles, straighteners) are a real concern in USA’s 120V supply. Always check the label on your own device.
How to check what you need for USA
- 01 Pick your home country in the checker above.
- 02 See instantly whether your plugs fit USA’s Types A & B sockets, and whether the 120V supply is a concern.
- 03 Read the label on each device — 100–240V means a plug adapter is all you need.
Frequently asked questions
What plug type is used in USA?
USA uses Types A & B plugs. The United States runs at 120V 60 Hz with Type A (2-pin) and B (3-pin, grounded) plugs. The same standard covers Canada.
What voltage is USA?
The standard mains voltage in USA is 120V at 60Hz. Most modern chargers and laptops are dual-voltage (100–240V) and work fine; single-voltage appliances from a country with very different voltage may need a converter.
Do I need an adapter for USA from the US?
USA accepts US-style Type A/B plugs, so a plug adapter may not be needed — but check the voltage: the US is 120V and USA is 120V. Use the checker above for your exact home country.
Do I need an adapter for USA from the UK?
Yes. UK Type G plugs don't fit USA's Types A & B sockets, so you'll need a plug adapter. Voltage is 120V — check whether single-voltage devices need a converter.