Currency Calculator
Currency Conversion
Conversion Result
| Converted Amount | — |
|---|---|
| Exchange Rate Applied | — |
How to Use This Currency Calculator
Airport kiosks and bank apps never quote the same number twice. Before wiring money overseas or sanity-checking an invoice, I convert here first—then confirm with whoever is actually moving the cash.
- Enter the amount you want to convert.
- Select from and to currencies from the dropdowns (USD, EUR, GBP, JPY, CAD, AUD, CHF, CNY, INR).
- Optionally enter a custom exchange rate if you have a live quote from your bank or payment provider.
- Press Convert. Review converted amount and the exchange rate applied.
Model purchase totals with tax using the Sales Tax Calculator, or compare international pricing with the VAT Calculator.
Currency Conversion Formulas and Practical Applications
Cross-rates route through USD as a common anchor—like changing planes at a hub airport. You don't fly direct from every city pair; you convert twice through the reference currency.
Cross-rate formula
Converted = Amount × (Rateto / Ratefrom)
Converting $1,000 USD to EUR at illustrative rates might yield about €920—your bank's spread could differ by 1–3% either direction.
Reference vs retail rates
Built-in rates mirror approximate Federal Reserve H.10 reference levels—they are not live feeds. Retail quotes add bid-ask spreads, wire fees, and card network margins that this tool intentionally excludes.
Frequently Asked Questions
Are exchange rates live?
No. This tool uses static illustrative reference rates. They do not update intraday and exclude bank spreads and fees.
How do I use a custom exchange rate?
Enter your quote in the Custom Exchange Rate field—one unit of the from currency equals that many units of the to currency.
Which currencies are supported?
USD, EUR, GBP, JPY, CAD, AUD, CHF, CNY, and INR.
Why doesn't my bank's rate match?
Retail quotes add margins and update continuously. This calculator is for quick estimates, not execution pricing.
How is the cross-rate calculated?
Each currency is stored relative to USD. The cross-rate converts via Amount × (Rateto / Ratefrom).