Where do the exchange rates come from?

Live mid-market rates are fetched from a free, key-less public FX API and cached in your browser. This is the only tool here that makes a network request — for the rates only.

Does it work offline?

Yes. If the rate service is unreachable it falls back to your last cached rates, or to bundled approximate rates, and tells you which it's using.

Are rates suitable for trading?

They're indicative mid-market rates for general conversion, not live dealing rates. Banks and providers add a margin.

Which currencies can I convert?

18 major currencies — USD, EUR, GBP, JPY, AUD, CAD, CHF, CNY, INR, BRL, ZAR, SGD, NZD, MXN, SEK, NOK, AED and TRY. You can convert between any pair, in either direction.

What is a mid-market exchange rate?

It's the midpoint between the buy and sell prices for a currency pair — the "real" rate you see on financial news. Banks, cards and money-transfer services add a margin or fee on top, so the amount you actually receive is usually a little less.

How is a cross-rate between two non-USD currencies calculated?

Rates are stored relative to the US dollar, so converting say GBP to EUR divides the amount by the GBP-per-USD rate to reach USD, then multiplies by the EUR-per-USD rate. The tool does this in one step and also shows the per-unit rate.

Why might the converted amount differ slightly from my bank?

This uses indicative mid-market rates and your bank applies its own rate plus a margin or fixed fee. Rates also move continuously, so a quote a few minutes old can differ from a live transaction.

Currency Converter — Gera Tools

Live currency converter

Convert between 18 major world currencies using live mid-market exchange rates. Useful for travellers budgeting a trip, online shoppers comparing prices across borders, and freelancers quoting clients abroad. Enter an amount, choose your currencies (or tap swap), and see the converted value plus the per-unit rate instantly.

How it works

Rates are fetched from a free, key-less public FX API with the US dollar as the base, so every currency is stored as an amount-per-USD. To convert between any two currencies the tool first divides your amount by the source rate to reach USD, then multiplies by the target rate: converted = (amount ÷ rateFrom) × rateTo. The result is formatted in the target currency, and the per-unit rate (1 unit of From = N units of To) is shown to four decimal places. Fetched rates are cached in your browser so the tool keeps working between visits.

Example

Converting £100 to euros with a GBP rate of 0.79 per USD and a EUR rate of 0.92 per USD: (100 ÷ 0.79) × 0.92 ≈ €116.46. The per-unit line would read £1 ≈ €1.1646.

Convert	Approx. rate	Result
1 USD → EUR	0.92	€0.92
1 GBP → USD	1.27	$1.27
100 EUR → GBP	0.86	£85.87
1 USD → JPY	150	¥150

Note: this is the only tool on the site that makes a network request — it fetches exchange rates from a free, key-less public API and caches them. If you’re offline, it falls back to your last cached rates (or bundled approximate rates) and clearly shows which it’s using. Rates are indicative and not for dealing.