Where do the exchange rates come from?
Rates are loaded from the shared Dab Tools prices bundle (the same file used by Zakat Calculator and Gold & Silver Rates). The hero or footer shows the date stamped on that file when it is available.
Interactive calculator loads when JavaScript is enabled. All calculations stay on your device.
Usage
- Compare holiday spending in your home currency while travelling abroad.
- Quick sanity check before sending remittances or international transfers.
- Cross-check bank, card, or exchange-counter quotes against reference rates.
- Plan travel or relocation budgets across several currencies.
- Convert invoice or salary figures between trading currencies for planning.
Knowledge
An exchange rate tells you how much one currency is worth in another. Most rates in financial data are quoted against a common base (often USD), and other pairs are derived by cross-multiplication — the same method this converter uses.
Mid-market vs retail rates. Banks, card networks, and money transfer services usually add fees or a spread on top of reference rates. The figures here are useful for planning and comparison, not as a guaranteed quote at a counter.
When rates move. Currencies fluctuate with markets, central-bank policy, and news. The bundle timestamp on the page shows when the underlying data was last refreshed.
FAQs
How is the converted amount calculated?
Your amount is converted using cross-rates in the bundle: each currency is quoted against a common base (usually USD). The tool multiplies your value by the rate from the “from” currency to the “to” currency. The bottom line shows what 1 unit of the source currency equals in the target currency.
What does “Swap currencies” do?
It exchanges the From and To selections so you can see the reverse conversion without re-picking both currencies.
Are these bank or card rates?
No. They are reference mid-market-style rates from the bundled data, useful for planning and comparison. Banks, card networks, and money transfer services often add fees or spreads, so your actual quote may differ.
Why do I see an error or no result?
Enter a valid amount and choose two currencies that exist in the loaded rates file. If the bundle failed to load, run the project’s rates refresh and asset sync steps for local development, or check that production is serving prices.json.
How many decimal places are shown?
Converted amounts and the unit rate under the result are shown to four decimal places. Very small or large values may still be easier to read if you round mentally for your use case.
Is my data stored or sent to a server?
Conversion runs in your browser. Amounts and currency choices are not uploaded or saved on a server. Only the rates file is fetched from the site (or your configured bundle URL).