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💱 Currency Exchange Rate Calculator

Instantly convert currencies with real-time exchange rates. Features a built-in offline cache so you can calculate conversions even without an internet connection. 100% privacy-friendly.

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❓ Frequently Asked Questions

How does the offline cache work?

Whenever you have an active internet connection, this tool fetches the latest exchange rates and saves them locally in your browser's storage. If you lose connection (e.g., while on a flight), it will seamlessly use the last saved rates to perform calculations.

Are the exchange rates accurate?

Yes, the tool fetches reference exchange rates published by the European Central Bank (ECB) via an open-source API. Rates are typically updated daily on working days.

Is my financial data tracked?

No. All calculations are performed directly on your device. We do not track the amounts you calculate or the currencies you select.

🗓️ Updated 2026-08-22

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