United States.

120 V · 60 Hz on Type A, Type B.

The wall gives you 120 V at 60 Hz through flat-blade sockets: two-pin Type A in older rooms, three-pin earthed Type B nearly everywhere else. Visitors from Europe, Australia or the UK need a plug adapter, and anything that is not dual-voltage — hair dryers and kettles especially — will run weakly or not at all on half its expected voltage.

The voltage window

A nominal 120 V supply may legitimately sit anywhere between 108 and 132 V (±10%). Dual-voltage gear (marked 100–240 V) shrugs at all of it.

Grid facts verified against IEC World Plugs — United States. Prose is our own.

Calling codes by Dialchord

From usKeychord— keyboard shortcuts for every app

Coming here from somewhere else?

Plug straight in — United States runs 120 V 60 Hz on Type A, Type B.

Faces drawn to scale from pin dimensions · verdicts are physical fit + voltage math, not safety advice — when in doubt, ask the hardware store, not the internet.