Free browser tool
Currency Converter
Convert currencies using current or cached exchange rates, with no signup and no embedded API keys.
Last updated:
Converted amount
€0.00
$100.00 = €0.00
Rates are fetched from Frankfurter over HTTPS without an API key and cached in this browser for offline fallback.
Free currency converter
Enter an amount, choose source and target currencies, and refresh rates when you need the latest available daily data.
This tool uses a no-key public rates endpoint and stores only exchange-rate data in your browser cache for offline fallback.
Tool description
Convert amounts between currencies using current or cached rates. It is useful for travel estimates, invoices, shopping, and quick finance checks.
Common uses
- Estimate travel costs or online purchases in another currency.
- Convert invoice or freelance amounts before quoting.
- Use cached rates when a recent rate is already available.
How to use Currency Converter
- 1. Enter the amount and choose the source currency.
- 2. Select the target currency.
- 3. Refresh rates if needed and review the converted amount.
FAQs
Are exchange rates live?
Rates are fetched from a no-key exchange-rate source and may be cached locally for repeat use.
Can I use this for final financial decisions?
Use it as an estimate. Banks, payment processors, and exchanges may use different rates and fees.
Why might the converted amount differ elsewhere?
Currency providers update at different times and may include spreads or transaction fees.
Calculation method
- The converter fetches available exchange rates for the selected base currency from a no-key public rates source.
- It multiplies the entered amount by the latest available target-currency rate returned by the provider.
- Recently fetched rates are cached in your browser so the tool can show a fallback when the network is unavailable.
Accuracy notes
- Converted amounts are estimates and may differ from banks, card networks, brokers, or payment apps.
- Actual transactions can include spreads, fees, settlement delays, or provider-specific rates.
- Use official provider quotes for payments, accounting, trading, or legal reporting.