You need a travel adapter, and likely a voltage converter
United States of America: Type A/B · 120V → South Korea: Type C/F · 220V
Get a Type C adapter + converter↗The specs, row by row.
Plug shape, voltage, frequency — the four things that decide whether your gear works on this route.
The story behind the route.
Why this specific origin → destination pair has the quirks it does — local context the data alone won't show.
If you're heading from United States of America to South Korea, understanding the electrical differences can save you from dead phones and ruined travel adapters. Type A/B (United States of America) and Type C/F (South Korea) are fundamentally different plug shapes. Voltage is where you need to pay attention. 120V in United States of America versus 220V in South Korea means you'll need more than just an adapter. This isn't a route where you want to figure things out at the hotel.
- →Uses 12H time format (e.g., 11:00 PM)
- →Temperature measured in Celsius (°C)
- →Electrical system uses 220V at 60Hz with Type C/F plugs
- →Tap water safety: drinkable
- →Convenience stores and pharmacies often stock basic adapters for a fraction of airport prices
- →When in doubt, look for "INPUT: 100-240V" on your device. That means it's safe without a converter.
What to pack for this route.
One adapter for the plug shape, one converter when voltage bands cross. That covers most of what you need.
A universal adapter covers this route plus 150+ other countries.
Bands differ (120V vs 220V). Hair dryers, curling irons, kettles need a converter — or a dual-voltage replacement.
Every adapter, charger, and travel-safe device we've curated.
The four partners we travel with.
eSIM for landing-day data, VPN for hotel WiFi, insurance for the gear, and a clean airport pickup in South Korea.
Saily eSIM
Activate before you fly so you have data the moment you land in South Korea. No SIM-card hunt at the airport.
NordVPN
Hotel and café WiFi is open and shared. NordVPN encrypts everything — banking, streaming, work — so no one on the same network can snoop.
Ekta Travel Insurance
Cross-border trips have moving parts. Ekta covers electronics, medical, and trip cancellation for South Korea.
Welcome Pickups
Skip the taxi-line negotiation in South Korea. English-speaking driver waits at arrivals with your name on a sign — fixed price.
Related routes, worth a look.
Same origin, same destination, or both — the routes most likely to be relevant if this one is.