What plug types are used in United States?
United States uses plug types A and B. These plug types determine which devices can be connected directly.
Voltage and frequency in United States
The voltage in United States is 120V with a frequency of 60Hz.
If your device is not compatible with this voltage, you may need a converter.
Why plug types and voltage differ in United States
Electrical systems in different countries were developed independently, which is why plug shapes and voltage standards vary. United States uses 120V and plug types A B, which may differ from other regions.
Do you need a travel adapter for United States?
If your device plug does not match types A and B, you will need a plug adapter.
Can you use your devices in United States?
Most modern electronics support 100–240V and will work with a plug adapter.
Single-voltage devices may require a voltage converter.
Frequently asked questions
What plug is used in United States?
United States uses plug types A and B.
What voltage is used in United States?
The standard voltage is 120V.
Do I need a travel adapter for United States?
If your plug type is different, you will need an adapter.