Power Outlets & Plugs in United States
United States at a glance
| Voltage | 120V |
|---|---|
| Frequency | 60Hz |
| Plug types | Type A, B |
| Voltage zone | LOW |
| US plug fits? | Often yes |
Plug types used in United States
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
Which adapter to buy
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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
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.