Convert Currency
Select currencies, enter an amount and exchange rate. Results update automatically.
| Currency | Approx. Rate | Converted |
|---|
How Currency Conversion Works
Currency conversion is a single multiplication. Take the amount in the source currency and multiply it by the exchange rate to get the equivalent in the target currency.
Formula: Converted Amount = Source Amount x Exchange Rate
Worked Examples
| Source | Rate | Result |
|---|---|---|
| 1,000 USD | 0.92 (USD->EUR) | 920.00 EUR |
| 500 EUR | 1.087 (EUR->USD) | 543.50 USD |
| 250 GBP | 189.5 (GBP->JPY) | 47,375 JPY |
| 10,000 JPY | 0.0053 (JPY->GBP) | 53.00 GBP |
This tool accepts any exchange rate -- live mid-market rates, bank-quoted rates, or historical rates for accounting and budgeting.
Understanding Exchange Rates
Mid-Market Rate vs. Bank Rate
The mid-market rate (interbank rate) is the midpoint between buy and sell prices on the global foreign exchange market. It is the "true" rate before any markup.
When you exchange money through a bank, currency exchange service, or payment provider, they add a spread -- the difference between what they buy currency for and what they sell it to you for. This spread is typically 1-4% for consumer transactions.
Inverse Rates
If 1 USD = 0.92 EUR, then 1 EUR = 1 / 0.92 = approx. 1.087 USD. The inverse rate lets you convert in the opposite direction. This tool shows the inverse rate automatically in the results.
When to Use a Manual Converter
- Comparing bank quotes: Enter the rate your bank offers to see the actual amount you will receive
- Historical accounting: Use the rate from a specific date for bookkeeping or expense reports
- Budgeting travel: Use a conservative rate (slightly worse than mid-market) to plan spending
- Cross-rate calculations: Calculate conversions between currencies that do not have a direct market quote
Common Mistakes in Currency Conversion
- Confusing rate direction. "1 USD = 0.92 EUR" means you multiply USD by 0.92 to get EUR. If you want to convert EUR to USD, use the inverse: 1 / 0.92 = approx. 1.087.
- Using the mid-market rate as your actual rate. The rate you see on Google or a financial site is the mid-market rate. Your bank will give you a worse rate (by 1-4%). Budget accordingly.
- Forgetting fees. Some services quote the mid-market rate but charge a separate transaction fee. The total cost is the spread plus any fixed fees.
- Rounding too early. Currency calculations can accumulate rounding errors over multiple steps. Keep full precision until the final result, then round to the appropriate number of decimal places for the target currency.
Currency Converter FAQ
How do you convert currency using an exchange rate?
Multiply the amount in the source currency by the exchange rate. For example, to convert 500 USD to EUR at a rate of 0.92, calculate 500 x 0.92 = 460 EUR. The exchange rate tells you how many units of the target currency equal one unit of the source currency.
What is an inverse exchange rate?
The inverse exchange rate is 1 divided by the original rate. If 1 USD = 0.92 EUR, the inverse is 1 / 0.92 = approx. 1.087, meaning 1 EUR = 1.087 USD. Use inverse rates to convert in the opposite direction without looking up a separate rate.
Why use a manual rate instead of live rates?
A manual rate input gives you full control. You can enter today's mid-market rate, a bank's quoted rate, a historical rate for accounting, or a custom rate for budgeting. Live-rate converters show one rate, but the rate you actually receive is usually different.
What is the difference between mid-market rate and bank rate?
The mid-market rate is the midpoint between buy and sell prices on the global currency market. Banks add a markup (spread) of typically 1-4% on top of this rate. That spread is their profit margin, so the rate you receive is always worse than the mid-market rate.
How do I find the current exchange rate?
Search for the currency pair (e.g., "USD to EUR rate") in any search engine to see the current mid-market rate. Central bank websites publish official daily reference rates. For the actual rate your bank will charge, check their foreign exchange page.
What is a cross rate?
A cross rate is an exchange rate between two currencies calculated via a common third currency (usually USD). For example, to find GBP-to-JPY, divide the USD/JPY rate by the USD/GBP rate. Cross rates are useful when no direct quote exists between two currencies.
Why do exchange rates change?
Exchange rates fluctuate based on supply and demand, driven by interest rate differences, inflation rates, trade balances, political stability, and market speculation. Central bank policy decisions are among the biggest short-term drivers.
Does this tool store my data?
No. All calculations run entirely in your browser using JavaScript. No data is sent to any server, and nothing is stored. When you refresh the page, inputs are cleared.
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Privacy & Limitations
- All calculations run entirely in your browser -- nothing is sent to any server.
- Results are estimates for planning purposes and should not replace professional financial advice.
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Currency Converter FAQ
How do you convert currency using an exchange rate?
Multiply the amount in the source currency by the exchange rate. For example, to convert 500 USD to EUR at a rate of 0.92, calculate 500 x 0.92 = 460 EUR. The exchange rate tells you how many units of the target currency equal one unit of the source currency.
What is an inverse exchange rate?
The inverse exchange rate is 1 divided by the original rate. If 1 USD = 0.92 EUR, the inverse is 1 / 0.92 = 1.087, meaning 1 EUR = 1.087 USD. Inverse rates let you convert in the opposite direction without looking up a separate rate.
Why does this converter use a manual rate instead of live rates?
A manual rate input gives you full control. You can use today's mid-market rate, a bank's quoted rate, a historical rate for accounting, or a custom rate for budgeting. Live-rate converters show one rate, but the rate you actually get from your bank or exchange service is usually different.
What is the difference between mid-market rate and the rate I get at a bank?
The mid-market rate (also called the interbank rate) is the midpoint between the buy and sell prices on the global currency market. Banks and exchange services add a markup (spread) on top of this rate. The spread is their profit margin. So the rate you receive is typically 1-4% worse than the mid-market rate.
How do I find the current exchange rate?
Search for the currency pair (e.g., 'USD to EUR rate') in any search engine to see the current mid-market rate. Central bank websites publish official daily reference rates. For the rate your bank will actually charge, check your bank's foreign exchange page or call them directly.
What is a cross rate?
A cross rate is an exchange rate between two currencies calculated using a common third currency (usually USD). For example, to find the GBP-to-JPY rate, you can divide the USD/JPY rate by the USD/GBP rate. Cross rates are useful when a direct quote between two currencies is not readily available.
Why do exchange rates change?
Exchange rates fluctuate based on supply and demand for currencies, which is influenced by interest rate differences between countries, inflation rates, trade balances, political stability, and market speculation. Central bank policy decisions are among the biggest short-term drivers.
Does this tool store my data?
No. All calculations run entirely in your browser using JavaScript. No data is sent to any server, and nothing is stored. When you refresh the page, inputs are cleared.