PlugVoltage

Country power profile

Power Outlets & Plugs in United States

United States uses Type A/B sockets at 120⁠V / 60⁠Hz. Dual-voltage (100–240V) devices need only a plug adapter; single-voltage US devices need a converter.

Voltage
120⁠V
Frequency
60⁠Hz
Plug type
Type A/B
US plug
Often fits
Reviewed
2026-07-16

Choose your next step

Check one device Get an exact verdict using your device label. Build a trip checklist Check several devices and share the packing verdict. Size a converter Calculate watts and headroom before buying.
United States runs 120V — close to the US 120V. Most US devices work with at most a plug adapter.

Fast checks for United States

Traveler checkWhat the data saysAction
100-240V chargersVoltage-safe on 120⁠V / 60⁠Hz.US plugs often fit; still confirm the charger label.
120V-only appliances120V is close to US voltage, but heat/motor performance can still vary.Check the label before packing a converter.
Plug shapeSockets are Type A/B in the country data.Adapter choice is about pin shape only; it never changes voltage.

United States at a glance

Voltage120⁠V
Frequency60⁠Hz
Plug typesType A/B
Voltage zoneLOW
US plug fits?Often yes

Plug types used in United States

Type A Reference shape and compatible sockets Type B Reference shape and compatible sockets

Type A Type B · grounded

Standard 120V at 60Hz. Type A is ungrounded (two flat blades); Type B adds a round ground pin. A single-voltage 220–240V appliance brought from Europe or Asia will run at roughly a quarter power or fail to start here — but it will not burn out.

Your devices in United States

Hair Dryer Yes MacBook Pro Charger (USB-C Power Adapter) Yes iPhone Charger Yes CPAP Machine Yes Curling Iron Yes Laptop Charger Yes Electric Shaver Yes Nintendo Switch Charger Yes
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Get a travel adapter for United States(opens in new tab)

Safety check: a plug adapter only changes plug shape. It does not convert voltage, so confirm your device label before buying.

Shopping links never change the safety verdict.

United States outlet FAQ

Can I charge my phone in United States without a converter?

Yes. Phone and laptop chargers are dual-voltage (100–240V) — you only need a plug adapter.

Is 120V dangerous for US devices?

United States runs 120V, close to the US 120V, so US devices are generally safe.

What plug type does United States use?

United States uses Type A/B sockets at 120⁠V / 60⁠Hz.

Related

Adapter vs converter · What "100–240V" means
Nearby: Canada · Mexico
Travelling to United States? From United Kingdom · From Australia · From Germany

Guidance only — not professional electrical advice. Always confirm against your device's label before plugging in. Local wiring (especially in hotels and older buildings) can vary.