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Plug adapter for South Korea from the United States

What travellers from the United States need to charge and power their devices in South Korea: plugs, voltage and frequency, with the rest of the trip basics below.

Plug adapter

Needed

Bring a Types C and F adapter (or a universal one that covers both).

Voltage

Higher: 220 V

The United States 120 V → South Korea 220 V. Devices made for 110–120 V only need a step-down converter.

Frequency

Same

60 Hz → 60 Hz.

Your plug, their socket

Type A plug from United States
Your Type A plug
does not fit
Type C socket in South Korea
Type C socket in South Korea
Type B plug from United States
Your Type B plug
does not fit
Type C socket in South Korea
Type C socket in South Korea

Your devices in South Korea

Look for the “INPUT” line on the charger or label. A range such as 100–240V ~ 50/60Hz means the device adapts by itself and needs only a plug adapter.

DeviceUsuallyIn South Korea
Phone, tablet and laptop chargers100–240 VPlug adapter only
Camera and power-bank chargers, e-readers100–240 VPlug adapter only
Electric shavers, toothbrushesoften 100–240 V; checkCheck the label: single-voltage ones need a converter
Hair dryers, straighteners, curling ironssingle voltageWill burn out on 220 V: buy a dual-voltage model or use the hotel's
Kettles, irons, travel cookerssingle voltage, high powerLeave at home: converters for these are heavy and costly

A plug adapter does not change voltage. Plugging a 120 V-only appliance into 220 V through an adapter will destroy it within seconds and can start a fire.

The rest of the trip basics

Time
South Korea is 14 h ahead of the United States right now (UTC+9 vs UTC−5, capitals).
Money
The South Korean Won (KRW): 1 USD = 1,335 KRW (ECB reference rates, 2026-10-30). Everyday prices are about 62% of the United States'.
Driving
On the right, as at home.
Advisories
US: Level 1 Exercise normal precautions. UK: no FCDO warnings. Details
Next holidays
25 Dec Christmas Day · 1 Jan New Year's Day · 6 Feb The day preceding Korean New Year All 23
Calling code
+82

Check your travel dates for holidays in the trip checker

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