United States to South Korea: Complete Plug & Adapter Guide (2026) Adapter Needed

Heading from United States to South Korea? Plug types and voltage standards differ between countries, so a little preparation goes a long way. Here's a breakdown of what to expect at the wall socket.

Your United States plugs (Type A, B) won't fit South Korea's outlets (Type C, F). You'll want to grab a universal travel adapter or one specifically designed for South Korea before you depart.

Voltage is another key difference. United States uses 120V while South Korea uses 220V. If your device only supports one voltage, using it with the wrong supply could cause overheating or permanent damage. Look for "Input: 100-240V" on your charger. Most modern phone and laptop chargers support this range.

Rather than packing bulky converters, consider buying travel-sized dual-voltage versions of appliances you can't live without. For phones and laptops, all you'll need is the right plug adapter since their chargers almost always support worldwide voltage.