Currency Converter
Convert 160+ world currencies with fresh mid-market rates — loaded once online, calculated and cached privately in your browser.
Loading exchange rates…
How it works: the exchange-rate table is fetched once from the free open.er-api.com service (no key, no account) and cached on your device for an hour; the multiplication that converts your amount happens locally in your browser. No amount you type is ever sent anywhere.
This tool runs entirely in your browser. Your data never leaves your device — it is not uploaded to any server.
How to use
- 1Enter the amount you want to convert.
- 2Choose the source and target currency — common ones are listed first.
- 3Read the converted result and the exact rate; use Refresh rates for the newest data.
Currency Converter
Exchange rates are fetched once from the free, keyless open.er-api.com service and cached on your device for an hour, so repeat conversions are instant and work offline. The arithmetic that turns your amount into another currency happens locally in your browser.
Type an amount, pick two currencies from the searchable list of 160+, and read the result plus the live rate line. Amounts you enter are never transmitted anywhere — only the anonymous rate table is downloaded.
Frequently asked questions
How often do the exchange rates update?
The open.er-api.com table refreshes about once per day, and this tool caches it in your browser for one hour before refetching. Press “Refresh rates” at any time to pull the newest table immediately.
Does using this tool send my data online?
No amounts are ever sent anywhere. The only network request downloads an anonymous, public rate table (USD-based) once per hour; the conversion math runs locally in your browser and even works offline from the cache.
Are these the rates my bank will give me?
These are mid-market reference rates — the midpoint between buy and sell prices banks trade at. Card networks and banks typically add a 1–3% spread or fee on top of this figure.
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Embed this tool
Put this tool on your own site with one line — it runs entirely in the visitor's browser.
<iframe src="https://zoyku.com/en/tools/currency-converter?embed=1" width="100%" height="640" style="border:0;border-radius:16px" title="Zoyku — currency-converter" loading="lazy"></iframe>