South Korea.

220 V · 60 Hz on Type F, Type C.

Fully converted to 220 V decades ago, so sockets are Schuko-compatible Type F and two-pin Type C europlugs fit them without fuss. Continental European visitors plug straight in. Unusually the frequency is 60 Hz, and anything single-voltage from North America or Japan needs a transformer, not just an adapter.

The voltage window

A nominal 220 V supply may legitimately sit anywhere between 198 and 242 V (±10%). Dual-voltage gear (marked 100–240 V) shrugs at all of it.

Grid facts verified against IEC World Plugs — South Korea. Prose is our own.

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Coming here from somewhere else?

Pack an adapter — South Korea runs 220 V 60 Hz on Type F, Type C — and your 120 V appliances need to be dual-voltage or transformed, adapter or not.

  • Type A needs an adapter

    South Korea's Type F / Type C sockets don't take a Type A plug.

    the full story

  • Type B needs an adapter

    South Korea's Type F / Type C sockets don't take a Type B plug.

    the full story

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.