South Korea to United States of America
South Korea uses Type C/F at 220V, while United States of America runs Type A/B at 120V. You need both adapters and converters.
Need an Adapter?
Yes! Yes, you need a Type C/F to Type A/B adapter
Need a Voltage Converter?
Maybe — check if your devices support 120V
🔍 Why This Route Matters
South Korea and United States of America couldn't be more different when it comes to power systems, and that matters for every device you pack. Your South Korea devices with Type C/F plugs won't fit United States of America's Type A/B outlets without an adapter. More critically, South Korea's 220V power won't match United States of America's 120V system. That's a 100 volt gap that matters. National dish: http://commons.wikimedia.org/wiki/Special:FilePath/Las%20Vegas%20%28Nevada%2C%20USA%29%2C%20The%20Strip%20--%202012%20--%206232.jpg. Bottom line: pack the right gear or prepare for inconvenience.
Side-by-Side Comparison ⚡
🎯 What Locals Know (That Tourists Don't)
- ✦Uses 12H time format (e.g., 11:00 PM)
- ✦Temperature measured in Fahrenheit (°F)
- ✦Electrical system uses 120V at 60Hz with Type A/B plugs
- ✦Tap water is safe to drink in most areas
- ✦Airport electronics shops in United States of America charge 3-4x typical adapter prices. Buy before you leave.
- ✦USB ports are everywhere in US hotels. Consider using those for phones/tablets.
- ✦Most phone and laptop chargers handle 100-240V automatically (check the fine print on the brick)
What You Need for This Trip 🧳
Plug Adapter
RequiredSouth Korea's Type C/F plugs won't fit United States of America's Type A/B outlets.
Voltage Converter
May Be RequiredUnited States of America uses 120V vs South Korea's 220V. Most modern electronics handle this automatically.
Airport & Arrival Tip
Most international travelers arrive through JFK, which has decent charging infrastructure. International terminals typically have USB charging stations near gates. Bring your own cable though. If you forgot an adapter, check duty-free shops before overpriced gate kiosks. Prices vary wildly. Airport express trains and shuttle buses usually don't have outlets. Charge before you board. If your adapter isn't working, hotel front desks can usually lend you one (or direct you to the nearest store).
Packing Advice
Pack both a plug adapter (Type C/F to Type A/B) AND a voltage converter (220V to 120V). You'll need both. All-in-one adapters with built-in USB charging are worth the investment for frequent travelers. Power banks must go in carry-on luggage (not checked bags). TSA and international rules are strict about this. Bring both USB-A and USB-C cables if you have devices that use different standards. Hair dryers are heavy and voltage-sensitive. Hotels in United States of America almost always provide them. Pack adapters in your carry-on. You might need to charge during layovers or if checked luggage is delayed.
Seasonal Considerations
Time of year matters for power planning in United States of America, especially if you're visiting during temperature extremes. **Summer travel:** Peak tourist season = crowded outlets at cafes and attractions. Charge at off-hours. **Winter travel:** Winter storms can cause power outages in some regions. Fully charged power banks are your safety net. **Holiday season:** Festive season shopping requires full phone battery for photos, maps, and payment apps. Plan for worst-case scenarios with your power setup. You'll be glad you over-prepared.