North America · plug & voltage guide

United States plug type and voltage

The United States uses Types A and B outlets at 120 V and 60 Hz. U.S. plugs fit the outlets in the United States.

Verified Oct 17, 2026By Steven MoHow we check Report a correction

Plug types
A, B

All are used; check your hotel

Voltage
120 V

U.S. outlets: 120 V

Frequency
60 Hz

U.S.: 60 Hz

Adapter from the U.S.
Not needed

No converter needed

Quick answer

The United States uses Types A and B at 120 V. U.S. plugs fit the outlets in the United States. The United States uses 120 V, the same as the United States.

Plug types
Type A, Type B
Voltage and frequency
120 V, 60 Hz
Adapter from the U.S.
No adapter needed
Converter
No converter needed

Do I need a plug adapter?

Outlets in United States
Type A
Type B
Plugs
Types A and B
Voltage
120 V
Frequency
60 Hz
Plug adapter
No adapter needed

U.S. plugs fit the outlets in the United States.

Voltage converter
No converter needed

The United States uses 120 V, the same as the United States.

The outlets you'll find in the United States

Outlets are Type A and B at 120 V, 60 Hz.

Type A

Two flat parallel pins

Not grounded · also used in U.S., Canada, Mexico, Japan

Type B

Two flat pins and a round grounding pin

Grounded · also used in U.S., Canada, Mexico

What to pack for the United States

  • No plug adapter: your U.S. plugs fit.
  • A small U.S. power strip, so one outlet charges everything.

Check the label first

Look for the input line on your charger or device. INPUT: 100–240V means it works anywhere with just a plug adapter. A single number such as 120V means it only works at that voltage.

United States plug FAQ

The United States uses Types A and B. Outlets are Type A and B at 120 V, 60 Hz.

Sources

Last verified Oct 17, 2026. Plug types and voltages rarely change, but hotels sometimes have older or international outlets.

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