Tips for USD/KRW
- • Compare rates from multiple sources before exchanging USD to KRW
- • Business travelers should use TTM rates for expense reports
- • Check Zenrate regularly for the latest mid-market rates
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Frequently Asked Questions
How much is 10,000 USD in KRW?
Use Zenrate to convert 10,000 US Dollar to South Korean Won at the current mid-market rate. The rate updates throughout the day.
What is the best USD to KRW exchange rate?
The best rate depends on your method. Check Zenrate's Exchange Finder for crowdsourced rates from money changers, or compare online services on our Compare page.
Where can I exchange USD to KRW?
Use Zenrate Exchange Finder to find money changers with the best rates in cities across Asia. For online transfers, compare services like Wise and Revolut.
What is TTM rate for USD?
TTM (Telegraphic Transfer Middle rate) is the mid-market rate used by Japanese banks for accounting. Zenrate Business mode shows TTM, TTS (sell), and TTB (buy) rates for expense reports.
Is it better to exchange at the airport or city?
City exchange shops typically offer 3-5% better rates than airports. Use Zenrate Exchange Finder to compare before you travel.
Sources & Methodology
Exchange rates are mid-market rates sourced from the Exchange Rate API, which aggregates data from central banks and financial institutions. Historical data is provided by the Frankfurter API (ECB reference rates). Rates are cached for 12 hours and are for informational purposes only. Actual transaction rates from banks and services may differ.
Reference notes for USD/KRW
When you typically see USD/KRW
US companies with Korea operations (Samsung Austin, Hyundai US, Kia US in reverse direction) reconcile USD-paid contracts to KRW books at the Korea entity. The direction depends on which entity's books — usd-to-krw at the Korea office for USD income; krw-to-usd at the US parent for translating Korea-subsidiary results. US-based individuals investing in Korean ADRs translate dividend payouts. US business travel to Seoul produces a smaller flow; conference attendance and supplier-factory tours generate per-trip receipts.
How USD/KRW behaves in accounting
U.S. Treasury publishes USD/KRW quarterly. Bank of Korea publishes a daily reference but is not implemented as a Zenrate fetcher. KRW is moderately volatile against USD. The Bank of Korea has periodically intervened to defend the won; sharp moves around interventions are documented but unpredictable. Daily moves of 0.3–1.0% are typical. For monthly recurring billings (Korean SaaS, regional cloud), prior-month-end policy on this pair is reasonable. For travel and one-off purchases, transaction-date with ECB cross-rate is the practical choice today since neither Treasury daily nor BOK direct is in the implemented sources.
Common conversion mistakes for USD/KRW
Same per-100-KRW gotcha as on jpy-to-krw, but in the USD direction the magnitude error is even more visible: USD/KRW around 1300 means 1 USD = ~1300 KRW. If a user sees a rate "13.00" from a Mizuho-style per-100-KRW quote and interprets it as per-1-KRW, the conversion is off by exactly 100x. Zenrate normalizes internally but spreadsheets pasted from external sources will not. Second: ignoring the KRW's overnight gap. Korea trading hours overlap minimally with US business hours; a Friday US transaction may settle against a Monday KRW rate that has moved 1%+ overnight. For accounting policies that strictly use transaction date, this is just the cost of doing business across timezones. Third: forgetting Korean public holidays cluster around Chuseok and Lunar New Year — extended closures where no fresh KRW reference publishes for several days running. The rate-policy module's previous-business-day fallback handles this transparently but the recorded lookup date may surprise users.
What Zenrate stores for USD/KRW
Live conversion via exchangerate-api.com (USD-base, direct USD/KRW). Twelve-hour cache. KRW normalized to per-1-KRW. Historical: U.S. Treasury USD/KRW quarterly. ECB cross-rated through EUR. Mizuho publishes JPY/KRW but not USD/KRW; the Mizuho path is not directly available for this pair. All six rate policies work via the available sources. The prior-month-average policy on ECB iterates business days and respects ECB's holiday schedule (not Korea's).
These notes describe the rate sources actually implemented in @zenrate/core/rate-sources at the time of publication. Behavior may evolve; the source code is the ground truth.