This won to dollar calculator works both ways and shows you what you actually receive, not just the headline rate. At an indicative mid-market rate of about 1,531 won per US dollar (22 June 2026), 1,000,000 KRW is roughly $653 — but after a typical 1–3% provider margin you keep noticeably less. Set the margin field below to model your bank, app or kiosk and see the real figure.
Most converters stop at the mid-market rate — the interbank midpoint that banks quote each other — and leave you to discover the real cost only at the till. This calculator goes one step further. For every amount it shows two numbers: the clean mid-market figure (USD = KRW ÷ rate one way, KRW = USD × rate the other) and the realistic after-margin figure that subtracts your provider's markup. The maths behind the margin is straightforward: a 1% margin multiplies the mid-market result by 0.99, a 3% margin by 0.97, and so on. The tool also prints the effective rate you are really paying, which is the single number worth comparing between providers.
Switch the direction selector to flip between Won → Dollar and Dollar → Won. The live rate is pulled from the fxkrw.com feed and refreshes on load; if the feed is briefly unavailable, the calculator falls back to a clearly labelled indicative rate so the page never shows a blank result.
People obsess over the flat transfer fee — the “$5” or “₩3,000” line — but on most exchanges the margin baked into the rate dwarfs the visible fee. Here is a worked example you can reproduce in the calculator above:
That roughly $20 gap on a single million-won exchange is the hidden cost a “no-fee” banner conveniently hides. Scale it to a tuition payment or a relocation transfer of tens of millions of won and the margin becomes hundreds of dollars. This is exactly why the calculator forces both numbers in front of you.
Mid-market values only, at the indicative rate of 1,531.39 KRW per USD (22 June 2026). Your after-margin figure will be lower — use the calculator to apply your provider's markup.
| Korean won (KRW) | US dollars (USD), mid-market |
|---|---|
| 10,000 KRW | $6.53 |
| 100,000 KRW | $65.30 |
| 1,000,000 KRW | $653.00 |
| 5,000,000 KRW | $3,265.01 |
| 10,000,000 KRW | $6,530.03 |
You rarely need to trust a provider's marketing — the margin is easy to reverse-engineer in under a minute:
For instance, if mid-market is 1,531.39 KRW per USD but your provider effectively gives you 1,485 won per dollar after all costs, the margin is (1,531.39 − 1,485) ÷ 1,531.39 × 100 ≈ 3.0%. Plug that 3% straight into the margin field above and the calculator will mirror what the provider quoted — a quick sanity check that you have understood the deal correctly.
Once you can read the margin, picking a cheaper route is simple. In rough order from best to worst for won-to-dollar conversions:
Whatever route you choose, run the amount through the calculator with that provider's margin first. Seeing the after-margin dollars next to the mid-market figure is usually all the motivation you need to switch to a cheaper channel before you commit.
It estimates the real amount you receive after your bank, kiosk or app applies its exchange-rate markup. The calculator first shows the mid-market figure, then subtracts your chosen margin so you can see the hidden cost. A 1 percent margin is typical for good apps; airport kiosks can be 3 to 4 percent or more.
At an indicative mid-market rate of about 1,531 KRW per USD, 1,000,000 won is roughly 653 US dollars before any markup. At a 3 percent airport-style margin you would receive only about 633 dollars, so the spread costs you around 20 dollars on that single exchange.
Compare the rate your provider quotes against the mid-market rate shown here. Divide the difference by the mid-market rate and multiply by 100. For example, if the mid-market is 1,531 and your provider gives 1,485 effective won per dollar, the margin is about 3 percent. Always include fixed fees in the comparison.
No. The mid-market rate is the interbank midpoint and is only a benchmark. Every consumer provider adds a margin, so the after-margin figure in this calculator is a closer estimate of what lands in your account. Use the margin field to model your specific provider.
Specialist money-transfer apps such as Wise and Revolut, plus the digital services from Korean banks like Hana and Woori, usually charge well under 1 percent. Airport kiosks, hotel desks and dynamic currency conversion at card terminals are the most expensive, often 3 to 7 percent worse than mid-market.