Currency Converter

Convert between world currencies using real-time exchange rates. Enter an amount to see instant conversions for USD, EUR, GBP, JPY, KRW and over 150 currencies worldwide.

How to Use

  1. Select currencies

    Choose the source and target currencies from the dropdown menus.

  2. Enter amount

    Input the amount you want to convert.

  3. View results

    See the converted amount and current exchange rate information.

What is an exchange rate?

An exchange rate is the ratio at which one country's currency is exchanged for another. For example, a 'KRW/USD rate of 1,350 won' means you need 1,350 won to buy one US dollar.

Cross rate

This calculator uses the Korean won (KRW) as the base currency, storing reference rates for five major currencies: USD, EUR, JPY, GBP and CNY. When converting between two foreign currencies, it routes through the won to compute a cross rate. For instance, when converting dollars to yen, it divides the 'won per dollar' rate by the 'won per yen' rate.

  • Travel and online shopping abroad: estimate in advance how much a payment costs in won
  • Study abroad and remittances: convert tuition and living costs and time your transfers
  • Import and export: estimate the won-denominated profit or loss on a transaction price

Calculation formula

The converted amount is found by multiplying the input amount by the applicable rate, rounded to two decimal places.

Converted amount = Input amount × Exchange rate

Between two foreign currencies, the cross rate is derived through the won.

A→B rate = (A's won rate) ÷ (B's won rate)

Example: 100 dollars to yen

  • USD reference rate = 1,350 won, JPY reference rate = 9.2 won
  • Cross rate = 1,350 ÷ 9.2 ≈ 146.7391
  • Converted amount = 100 × 146.7391 ≈ 14,673.91 yen

If you select the same currency, the rate is 1 and the converted amount equals the input value unchanged.

Frequently Asked Questions

How are exchange rates determined?
Exchange rates are set by supply and demand in the foreign exchange market. Many factors play a role, including economic indicators, interest rate differentials, trade balances and political stability.
What is the difference between the mid-market rate and the actual rate?
The mid-market rate is the midpoint rate based on interbank trading. When you actually exchange money, a bank spread is added, making it more expensive to buy and cheaper to sell.
What is a preferential exchange rate?
It is a discount on the bank's exchange fee. For example, a 90% preferential rate waives 90% of the fee, letting you exchange at a price close to the mid-market rate.
How is a cross rate calculated?
When there is no direct rate between two foreign currencies, it is calculated through a common base currency (here, the won). For example, dollars to yen divides 'won per dollar' (1,350) by 'won per yen' (9.2) to get about 146.74.
Are the rates in this calculator real-time?
No. It uses fixed reference rates from the base date (2026-03-25) for guidance only. Before any actual remittance or exchange, always check your bank's live quoted rates.
What happens when the KRW/USD rate rises?
It means the won has lost value. This benefits exporters, but raises import prices and adds pressure to inflation. Costs for travel, studying abroad and online shopping also increase.
Why is the yen rate as small as 9.2?
The yen is usually quoted per 100 yen, but this calculator works from won per single yen (about 9.2 won). Since one yen has a small value, the rate figure appears small too.
Why does the result differ from the actual exchanged amount?
This result is a theoretical value calculated with fixed rates close to the mid-market rate. In reality, cash fees, transfer fees, preferential rates and rate fluctuations are factored in, so the amount differs.
Updated 2026 — latest rates

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