The official Plugs-and-Sockets.org

Travel Adapter Guide for the United States

The travel adapter guide for the United States is a comprehensive guide to the types of plugs and sockets used in the United States. It includes information on the frequency, voltage, and types of plugs used in the United States.

There are 15 different types of plugs and sockets in use around the world today, along with a variety of different voltage and frequency standards. This guide will help you understand the different types of plugs and sockets used in the United States and how they compare to those you use at home, so you can be sure you have the right adapter for your trip.

What socket types are available?

The United States uses earthed sockets of Type B Type B plug. Unearthed Type A Type A plug sockets are occasionally found as well; on extension cords for example.

About socket types

Which plugs can I use?

You can use unearthed (two-pronged) Type A Type A plug and earthed (three-pronged) Type B Type B plug plugs in American sockets. Type A Type A plug plugs are used in North America, East Asia and other regions.

Compatibility checker

Voltage and frequency

The American power grid supplies electricity at 120 volts and 60 Hz. Always check the voltage and frequency ratings of your devices before plugging them in. Many devices, such as phone chargers, are dual-voltage and can be used in the United States without a voltage converter. However, some devices, such as hair dryers, are often not dual-voltage and will require a voltage converter to operate safely.

About voltage converters

Travelling to the United States soon?

Use our compatibility checker to see if you can use your local devices in the United States, and have a look at our recommended travel adapters for your trip.

Compatibility Checker

Which country are you travelling from?

Systems Compared

 United States
 Select a country
Compatible?
Plug TypesA, B 
Voltage120V 
Frequency60Hz 

What do American sockets look like?

the United States uses the following plug and socket types:

ModelSocket DiagramPlug Diagram
Type AType A socketType A plug
Type BType B socketType B plug