Calculators & ProductivityAPI-assistedNew

Currency Converter

Convert amounts with daily ECB reference rates.

Uses a KitJade API for the live checkUpdated 2026-11-10 Report a problem

What this currency converter does

Currency Converter multiplies an amount by the European Central Bank reference rate for the chosen pair. It shows the direct rate, the inverse and a short table of other currencies against the same base.

Reference rates are indicative and published once per working day. They exclude the spread, commission and card-network markup that decide what a bank or exchange actually gives you. The tool performs arithmetic on published rates; it is not a quote, a transaction or financial advice. Rates are fetched through the Worker and cached for an hour.

Why use it

Estimate an invoice or travel budget before checking a bank quote.
Compare a card charge with the published mid-market rate.
Translate prices for a document without opening a trading platform.
See the inverse rate to sanity-check a quoted pair.

How to use it

1Enter the amount and choose the source currency.
2Choose the target currency, or press Swap to reverse the pair.
3Press Convert to fetch the latest published rates for the source currency.
4Read the converted amount, rate date and source before using the figure.

Worked examples

USD to INR

Input

100 USD, target INR

Output

The converted rupee amount, the rate per USD and the inverse rate per INR.

Swapped pair

Input

EUR to GBP, then Swap

Output

The pair becomes GBP to EUR and the rate is fetched again for the new base.

Common mistakes

Treating a reference rate as the amount a bank will pay after its spread.
Expecting new rates at weekends and on ECB holidays; the published date stays on the last working day.
Reversing base and quote by mistake; the inverse rate is not the same number.
Using the figure for a contract without recording its date and source.

Frequently asked questions

Which rates are used?

European Central Bank reference rates, served through the Frankfurter API. The rate date and source are shown with every conversion.

How often do rates change?

The ECB publishes once per working day, usually around 16:00 CET. Weekend and holiday conversions reuse the last working day's rates.

Why is my bank's rate different?

Banks and card networks add a spread and may use their own wholesale rate. A reference rate is a midpoint, not an offer.

Which currencies are supported?

The 30 currencies in the ECB reference set, including USD, EUR, GBP, INR, JPY, CNY, AUD and CAD. Currencies outside that set, such as AED, are rejected rather than filled with an unofficial rate.

Can I convert historical dates?

Not in this tool. It shows the latest published rates only, so no historical series is implied.

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