What is the currency converter — convert between major currencies?
In short
Currency conversion multiplies your amount by the exchange rate between two currencies — converting 1,000 units at a rate of 0.1289 yields 128.94. This calculator uses indicative mid-market rates updated daily; your bank, card issuer, or exchange provider may add a rate markup of roughly 1–5%, a transaction fee, or both.
Converts an amount between major world currencies using reference exchange rates (rates relative to USD).
How to use this calculator
- 1Enter the amount you want to convert.
- 2Choose the currency you are converting from.
- 3Choose the currency you are converting to.
- 4Review the converted amount, exchange rate, and inverse rate.
The formula
- A
- — Amount in source currency
- R₁
- — Source currency rate vs USD
- R₂
- — Target currency rate vs USD
Worked example
The scenario
Convert $1,000 USD to EUR with USD rate = 1.0, EUR rate = 0.92.
The result
Exchange rate = 0.92. Converted amount = €920.00.
Common use cases
- Travel budgeting and expense planning.
- International business invoicing.
- Comparing prices across countries.
- Monitoring exchange rate impacts on investments.
Limitations & assumptions
- Uses daily indicative reference rates rather than real-time tradable quotes — rates may differ from those offered by banks, cards, ATMs, or money-transfer providers.
- Doesn't include bank spreads, transaction fees, or foreign transaction fees (typically 1–3%).
- ATM withdrawal rates and credit card rates may differ from mid-market rates.
- Some currencies have official and unofficial exchange rates.
Frequently asked questions
What is the mid-market exchange rate?
Where can I find the best exchange rates?
Why do exchange rates change?
What is a strong vs. weak dollar?
What are the most traded currencies?
Disclaimer: KalkWise calculators are provided for general informational and educational purposes only and do not constitute financial, investment, tax, or legal advice. Results are estimates based on the figures you enter and the assumptions described above. Actual outcomes will vary. Consult a qualified professional before making financial decisions.