Currency converter
Live & historical daily rates from your choice of US or EU provider.
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About this tool
Convert between 160+ currencies using daily reference rates from a US-based provider (ExchangeRate-API, USD base). Rates are cached in your browser for 24 hours so the converter still works offline.
Useful for quick travel budgets, freelance invoices and shopping abroad. Not intended for trading or settlement.
Features
- Daily USD-based reference rates
- 160+ currencies
- 24-hour local cache - works offline after first load
- Two-way conversion in a single click
How to use it
- Enter an amount.
- Pick the source and target currencies.
- Read the converted value.
Everything happens inside your browser using JavaScript and WebAssembly. Your files are never uploaded to a server, never stored, and never seen by us.
Frequently asked questions
The provider updates daily. Rates are cached locally for 24 hours; refresh after a day to pull new ones.
No. Reference rates are for information only - they don't include spreads or fees a real exchange would charge.