The single best way to exchange KRW is to start from the mid-market rate, then pick the channel with the smallest spread for your situation: a licensed money changer for cash, a low-fee multicurrency card for spending, and a specialist transfer app for sending money across borders. Airport kiosks are almost always the worst option. This guide covers both directions — turning foreign currency into Korean won when you arrive, and converting won out to dollars, euros, yen or your home currency — and shows exactly where the hidden costs hide.
Before you change a single bill, find out what the won is actually worth. The mid-market rate (also called the interbank or "real" rate) is the midpoint between the global buy and sell prices that banks trade at. Every exchange option below adds a margin on top of it — that margin is the true cost, even when a provider advertises "0% commission" or "no fees." Check the current figure with the fxkrw.com converter or the live home page rate first. Once you know, for example, that the won is trading near 1,500 to the dollar, you can instantly tell whether a money changer's board or an app's quote is fair or padded. We deliberately avoid printing a fixed rate here because the won-dollar pair can move 1–2% in a single day; always verify the live figure.
If you are arriving in Korea as a tourist or moving as an expat, you need won. Here are the realistic channels, roughly best to worst on rate.
Registered money changers in tourist districts — the famous booths in Myeongdong and Itaewon in Seoul, or Nampo-dong in Busan — are the cash champions. They run on volume, display a public buy/sell board, and frequently beat banks by a noticeable margin, especially for major currencies like USD, EUR and JPY. Bring clean, undamaged notes; older or marked bills can be refused or discounted.
KB Kookmin, Shinhan, Hana, Woori and NongHyup all exchange cash at branch counters and offer fair, transparent rates — usually a little worse than a top money changer but more consistent and available nationwide. Bank apps sometimes give a "preferential rate" discount of up to 50–90% off the cash spread if you order won online and collect at a branch or airport counter.
"Global ATM" machines and bank ATMs that accept foreign Visa, Mastercard, Plus or Cirrus cards let you withdraw won directly in Korea. With a low-fee debit card the rate is close to mid-market, but watch for two charges: your home bank's foreign-withdrawal fee and a local ATM operator fee (often 3,000–5,000 KRW). Withdraw larger amounts less often to dilute the fixed fee, and always decline dynamic currency conversion (see below).
Exchange counters at Incheon and Gimhae airports are the most expensive way to get won. They pay for captive, last-minute locations and price the spread accordingly — commonly several percent worse than downtown. Change only enough to reach your accommodation (a taxi or train fare), then use a better channel in the city.
Leaving Korea, or sending money abroad, means converting won the other way. The options shift slightly.
Got a pocket of won to spend before your flight? A licensed changer will buy it back, but the buy-back spread is wider than the sell spread, so you lose a little in each direction. Spend down small notes on coffee and snacks first, then change only sizeable leftover amounts.
For converting won to another currency in an account, Wise and Revolut typically apply a transparent fee of a fraction of a percent on top of the genuine mid-market rate — far tighter than a bank's tourist spread. They are ideal for holding a balance you can spend or move later. Note that funding from a Korean won bank account may require a verified local account.
Korean banks' online FX lets account holders convert won and send it overseas, often with the preferential-rate discount mentioned above. For larger sums — sending a salary home, paying tuition — compare a bank wire against a specialist service; our Korea remittance comparison and guide to sending money to Korea break down the trade-offs.
Every licensed changer posts a board with two columns per currency: "We Buy" and "We Sell", always from the shop's point of view. If you are handing over dollars to receive won, you want the buy rate for USD (how much won they give per dollar). The gap between buy and sell is the spread — the narrower it is, and the closer the midpoint sits to the mid-market rate you checked earlier, the better the deal. A wide gap means a hungrier margin. Compare two or three booths within a block; rates vary even on the same street.
When you pay by card or use an ATM, the terminal may ask whether to charge you in Korean won or in your home currency. Always choose Korean won. Picking your home currency hands the conversion to the merchant or ATM operator, who applies a poor rate plus a markup of typically 3–8% — this is dynamic currency conversion. Letting your own card network convert at its rate is almost always cheaper. The same trap appears on hotel bills and online checkouts: if you see your home currency offered "for convenience," decline it.
Korea is extremely card-friendly, so a low-margin card billed in won handles most spending at an excellent rate; keep some cash for traditional markets and rural areas. Timing matters too: the interbank market closes on weekends and public holidays, so banks, apps and changers widen their spread to buffer against Monday's open. If your exchange or transfer is not urgent, doing it on a weekday usually gets you closer to the true rate.
| Method | Typical margin vs mid-market | Speed | Best for |
|---|---|---|---|
| Licensed money changer (Myeongdong/Itaewon) | ~0.5–1.5% | Instant | Cash, major currencies |
| Korean bank counter | ~1–2.5% | Instant / same day | Reliability, larger amounts |
| Korean bank app (preferential rate) | ~0.3–1% | Order ahead, collect | Account holders ordering won |
| ATM with low-fee foreign card | ~0.5–2% + fixed fees | Instant | Topping up cash on the go |
| Multicurrency app/card (Wise, Revolut) | ~0.3–1% | Seconds to minutes | Card spending, holding balances |
| Online bank FX / remittance | ~0.5–2% | Hours to 1–2 days | Sending money abroad |
| Airport kiosk | ~5–12% | Instant | Emergency starter cash only |
Tourist arriving with cash: change a small amount at the airport for transport, then use a licensed Myeongdong/Itaewon money changer for the bulk, and a low-fee card for everyday spending. Avoid DCC everywhere.
Expat with a Korean bank account: use your bank app's preferential online rate to buy or sell won, a low-fee local debit card for ATMs, and a multicurrency app for any cross-border conversion.
Sending a salary or large sum home: compare your Korean bank's online remittance against specialist services on rate plus all fees, time it for a weekday, and confirm the all-in amount your recipient will get — see our best money transfer app guide.
For the closest rate to mid-market, a licensed money changer in Myeongdong or Itaewon is usually best for cash, and a multicurrency app or card such as Wise or Revolut is best when paying by card or withdrawing from ATMs. Avoid airport kiosks for anything more than a small starter amount. Always check the mid-market rate first so you know what a fair offer looks like.
Yes. Licensed money changers in districts like Myeongdong, Itaewon and Busan's Nampo-dong are registered with Korean authorities and display their licence and a public buy and sell board. They are generally safe and often beat bank rates for cash. Stick to busy, established shops, count your money before leaving, and ignore anyone offering to exchange on the street.
Banks beat airports on rate almost every time. Airport kiosks at Incheon and Gimhae carry the widest spreads because they pay for prime, captive-audience locations. Change only what you need to reach the city at the airport, then use a downtown bank, a licensed money changer or an ATM with a low-fee card for the rest.
Korea is highly card-friendly, so for most spending a low-margin debit or credit card billed in won gives an excellent rate. Carry some cash for traditional markets, small eateries and rural areas. The best mix is a multicurrency or low-fee card for day-to-day payments plus a modest cash buffer exchanged at a good rate.
When a card terminal or ATM offers to charge you in your home currency instead of Korean won, always choose to be charged in won (KRW). Paying in your home currency triggers dynamic currency conversion, where the merchant or ATM operator sets a poor rate and adds a markup of typically 3 to 8 percent. Letting your own bank convert at its rate is almost always cheaper.
Effectively yes for many providers. The interbank market is closed on weekends and public holidays, so banks, apps and changers price in a buffer against Monday's opening, widening the spread you pay. If your transfer or exchange is not urgent, doing it on a weekday usually gets you closer to the true mid-market rate.