Exchange Rate Calculator
Pick two currencies and an amount to convert at live public rates.
Convert
Result
How it works
Pick, type, convert — rates fetched live.
Choose currencies
Pick the source and target currency.
Fetch live rates
Rates load from a free public API in your browser.
See the result
Get the converted amount and the rate instantly.
Why choose Ercc Exchange Rate Calculator?
Free public rates
Uses a keyless public exchange-rate API, refreshed on demand.
Instant results
No submit button. Results calculate as you type.
No signup needed
No account, no key — the conversion runs in your browser.
Pro Tips
- ● Rates are indicative mid-market values, not a buy/sell price.
- ● Tap the swap icon to flip the two currencies quickly.
- ● Hit “Update rates” to pull the latest values when needed.
Frequently Asked Questions
Rates are fetched live from a free public exchange-rate API (open.er-api.com), with a fallback source. They are indicative mid-market rates, not a buy/sell price.
No. The API is free and keyless, and the conversion runs in your browser.
If your network blocks the public API, the tool shows a notice and waits for you to retry. Nothing is uploaded.