A quoted rate is not necessarily your customer rate
Stored daily quotes differ from bank customer rates. Check cash versus transfer rates and discounts, and compare final rates and amounts received.
Exchange Rate Calculator
How much are your
dollars or won worth?
Convert amounts, estimate exchange costs and check gains on dollars you hold. Confirm the final customer rate with your bank or broker.
Latest stored daily rate
1 USD = 1,342.00 KRW
Data date:
Versus previous stored trading day (2026-10-05): -0.40 KRW / -0.03%
Korea Investment & Securities (KIS) · KRW per 1 USD · Not a live quote or bank reference rate.
Useful facts about currency exchange
The terms matter
as much as the rate.
A 90% discount does not reduce the exchange rate by 90%
The discount reduces the eligible spread. With an assumed 1.75% spread and 90% discount, 1.75% × (1 − 0.90) = 0.175% remains. Equal discounts do not mean equal costs when base spreads differ.
Consider both buying and selling costs
Buying at 1,424 KRW and selling at 1,376 KRW loses 48 KRW per dollar. Break-even depends on the actual selling rate, not merely a rise in the reference rate. Without separate charges, sell at 1,424 KRW or more.
Example: exchange 1,000 USD in both directions at an unchanged reference rate
- Buying rate
- 1,424 KRW / USD
- Selling rate
- 1,376 KRW / USD
- Round-trip loss
- 48,000 KRW
Ordinary personal exchange gains are generally outside Korean income tax
Under the cited Korean tax interpretation, ordinary exchange gains of non-business individual Korean residents are outside taxable income. Foreign-currency deposit interest is taxed separately. Overseas share gains include KRW conversion effects. Business transactions and derivatives follow separate rules.
Account exchange can still carry a cash withdrawal charge
Withdrawing exchanged currency as banknotes may add a fee. For travel cash, compare exchange and withdrawal costs together. Consider storage and loss risks.
More things to check
When does automatic exchange for a KRW stock order occur?
Brokers may use different conversion times, rates and discounts. Check provisional conversion, later settlement and the final exchange record.
Is exchanging in installments always better?
You can spread exchanges across several dates, but this does not guarantee a better average rate or profit. Consider spending dates for travel and funding schedules for investing.
How much currency can I carry when traveling?
When entering Korea, declare covered payment instruments including KRW, foreign currency and checks totaling more than USD 10,000 equivalent. Departure procedures may depend on residence status and purpose. Check Customs guidance. Income taxation and currency reporting are separate matters.
How the calculation works
USD → KRW = amount × rate; KRW → USD = amount ÷ rate. Gain/loss = dollars × selling rate − sale charges − (dollars × buying rate + purchase charges). Cost mode adds the remaining spread for buying and subtracts it for selling.
Sources and scope
Sources checked: 2026-10-05. Tax information concerns ordinary personal currency exchange by Korean residents. The English page uses Korean rules, not those of other countries.
KIS API · Korean Income Tax Act, Article 16 · KRW conversion of overseas share gains · Combined deposit and forward transactions