Currency Converter Calculator
Convert any amount from one currency to another using a live or custom exchange rate. Useful for international purchases, travel budgeting, freelance invoicing, and cross-border business transactions.
About this calculator
Currency conversion multiplies the source amount by the exchange rate between two currencies. The formula is: Converted Amount = amount × exchangeRate. The exchange rate expresses how many units of the target currency one unit of the source currency buys. For example, if the EUR/USD rate is 1.08, one euro buys $1.08. Exchange rates fluctuate continuously based on interest rates, inflation, trade balances, and market sentiment. When using this calculator, always source the current mid-market rate from a reliable provider such as the European Central Bank or a forex data API. Note that banks and payment services add a spread — typically 1–3% above the mid-market rate — so the rate you actually get will differ slightly from the theoretical conversion shown here.
How to use
You want to convert £750 (British pounds) to Japanese yen (JPY). You check that today's GBP/JPY exchange rate is 191.50. Enter Amount = 750 and Exchange Rate = 191.50. The calculator computes: Converted Amount = 750 × 191.50 = ¥143,625. If your bank applies a 2% spread, the effective rate drops to 191.50 × 0.98 = 187.67, yielding ¥140,752 — a difference of nearly ¥2,873, which illustrates why comparing provider rates matters for large transfers.
Frequently asked questions
How do I find the correct exchange rate to use in the currency converter?
The most accurate reference is the mid-market rate, which is the midpoint between the buy and sell prices on the global forex market. You can find it on Google (search 'USD to EUR'), XE.com, or the European Central Bank's daily reference rates. This rate is the fairest benchmark but is rarely available to retail customers — banks and transfer services add a markup. For budgeting purposes, use the mid-market rate; for exact planning, check the rate your specific bank or service offers.
Why does the amount I receive differ from what the currency calculator shows?
Currency calculators display the theoretical mid-market conversion, but real transactions involve additional costs. Banks add a currency conversion spread (1–3%), a fixed transfer fee, and sometimes a correspondent bank fee for international wire transfers. Payment services like PayPal or Revolut also apply their own markup above the mid-market rate. Always check the all-in rate and fees quoted by your provider before completing a large conversion to avoid surprises.
When should I lock in an exchange rate for a business or large personal transaction?
If you have a known future payment in a foreign currency — such as a supplier invoice due in 30 days or a property purchase — locking in a rate through a forward contract or a rate-alert service protects you from adverse currency movements. Exchange rates can shift several percent within weeks, which on a $50,000 transaction represents thousands of dollars of variance. Services like Wise Business, OFX, or specialist FX brokers offer forward contracts, while individuals can use rate alerts to convert when the market hits a target.