Indicative rates, not an offer.
The South Korean won (KRW) is the national currency; US dollars, Japanese yen, Chinese yuan and euros are the most exchanged. Seoul has the most offers, followed by Busan, Incheon, Daegu and Daejeon.
In Seoul, licensed money changers in Myeongdong usually offer better rates than airport counters, and banks exchange currency at their branches. P2P offers let you swap USDT or USDC for won or arrange a transfer.
Below are exchange offices from open sources.
Below are exchange offices from open sources.