Electricity & Plugs in Seoul

⚡ Electricity & Adapters

Voltage: 220V

Frequency: 60Hz

Plug Types: Type C (European two round pins) and Type F (European two round pins with grounding clips)

What You Need to Know:

North American Devices (110-120V): You need both a plug adapter AND a voltage converter/transformer for devices that don't support 220V. Check your device label many modern electronics (laptops, phone chargers, cameras) are dual voltage (110-240V) and only need a plug adapter.
UK/European Devices: European plugs (Type C) work directly. UK plugs (Type G) need an adapter.
Australian/Chinese Devices: Need plug adapter (220-240V compatible).

Where to Buy Adapters:

Incheon Airport: Convenience stores (GS25, CU) in arrival halls sell universal adapters (₩5,000-15,000).
Convenience Stores: Throughout Seoul - GS25, CU, 7-Eleven, Emart24.
Electronics Stores: Yongsan Electronics Market, large marts (E-mart, Lotte Mart).
Hotels: Many hotels provide adapters at front desk (deposit may required).

Voltage Converter vs. Adapter:

Plug Adapter: Changes plug shape only, doesn't convert voltage. Use for dual-voltage devices (110-240V).

Voltage Converter: Converts 220V to 110V. Needed for single-voltage devices (hair dryers, curling irons, some appliances). Can be heavy and expensive (₩30,000-50,000).

Money-Saving Tip: Buy a cheap hair dryer in Korea (₩10,000-20,000 at Daiso or marts) instead of bringing converter for your 110V hair dryer. Donate it before leaving or keep for future trips.

Device Compatibility Guide:

Device Type	Usually Dual Voltage?	What You Need
Smartphone/Tablet chargers	✅ Yes (100-240V)	Adapter only
Laptop chargers	✅ Yes (100-240V)	Adapter only
Camera battery chargers	✅ Yes (100-240V)	Adapter only
Electric toothbrush	✅ Usually	Check label, adapter only if dual
Hair dryer	❌ Usually not	Adapter + Converter OR buy in Korea
Flat iron/Curling iron	❌ Usually not	Adapter + Converter OR buy in Korea
Electric razor	⚠️ Varies	Check device label
CPAP machine	✅ Usually	Check label, usually adapter only

How to Check Your Device:

Look for a label on the device or power adapter showing INPUT specifications:

"INPUT: 100-240V" = Dual voltage, only need adapter
"INPUT: 110V" or "120V" = Single voltage, need converter + adapter
Check before your trip to avoid buying unnecessary equipment

USB Charging:

Korea has excellent USB charging infrastructure:

Most cafes have power outlets and USB ports
Subway stations have charging stations
Convenience stores sell portable USB chargers (₩10,000-30,000)
Hotels provide USB outlets or adapters
Consider bringing a multi-port USB charger with adapter for all your devices

Important: Using wrong voltage can damage devices or create fire hazards. When in doubt, check device specifications or ask hotel staff. Many hotels can loan appropriate equipment.