How to convert currencies

The converter calculates how much an amount in one currency is worth in another, using reference exchange rates obtained from public services when the page is opened. It works as a quick estimate, for example before an international purchase or a trip.

In the left block, choose the source currency. The default is the real (BRL).
Type the amount in the field next to it. The conversion is recalculated with every key you type, with no confirm button.
In the right block, choose the target currency. The default is the dollar (USD) and the result appears with two decimal places.
Below, the rate line shows the relationship used, in the format "1 BRL = x USD" with four decimal places, along with the date of the rates and the source.
The ⇄ button swaps the source and target currencies and recalculates the result with the same amount typed.

Available currencies

There are seven: US dollar (USD), Brazilian real (BRL), euro (EUR), pound sterling (GBP), yen (JPY), Chinese yuan (CNY) and Argentine peso (ARS). The conversion always goes through the dollar as an intermediate currency, which is just a calculation detail. If the data source does not provide the rate for one of these currencies, it appears disabled in the list instead of producing a wrong result.

Where the rates come from and what the limits are

This is a reference tool, not a trading one. A few points are worth knowing:

The rates come first from the ExchangeRate-API service (open.er-api.com), which covers about 160 currencies, and, if it fails, from Frankfurter (European Central Bank data). Both publish rates updated once a day, not real-time quotes, and the page loads them only when it is opened or reloaded.
The rate line shows the date of the last update. If the data is a few days old, such as over weekends, the value may be out of date.
If no source responds, the page shows an error notice and converts nothing. There are no fixed fallback values or hidden 1-to-1 conversion.
The Argentine peso has an official exchange rate and parallel rates that differ greatly from each other. The rate shown is the official reference rate and may be far from the value actually used on the street.
These are reference rates, with no spread, IOF tax, card fees or exchange-office fees. What you actually pay will be different.

Practical examples

Buying from a foreign store: convert the price in dollars to reais and add taxes and shipping, which are not included.
Planning a trip: see roughly how much R$ 5.000 would be in euros, pounds or yen to put together the budget, always as an estimate.
Freelancers with clients abroad: convert the amount of a project billed in dollars to get an idea of what it represents in reais.
Comparing prices: the same product in dollars and in euros can be compared by converting both to reais.

Any number quoted here is illustrative; real exchange rates change often.

Privacy and how it works

The amounts you type stay only in your browser; the calculation is done locally. What goes over the internet is the request for the rate table, made to ExchangeRate-API and, if it fails, to Frankfurter, which, like any website, receive your IP address. The tool keeps no history. Details in the Privacy Policy. For other calculations, see the calculator.

Frequently asked questions

Are the rates real-time?

No. They are reference rates updated daily, and the date of the last update appears below the result. For financial transactions, confirm the quote with your bank or broker.

Why is the value from my bank or card different?

Banks and exchange offices apply a spread, fees and taxes such as the IOF on top of the reference rate.

An error appeared saying the rates could not be loaded. What should I do?

Check your connection and reload the page. While the rates do not load, the tool deliberately shows no result, so as not to give an incorrect value.

Can I convert cryptocurrencies or other currencies?

No. Only the seven listed currencies are available.

Which rate is used for the "commercial dollar" or "tourist dollar"?

Neither. The tool uses general reference rates, with no distinction between the commercial, tourist or parallel dollar.

💱 Currency Converter