Free online converters
Convert currencies, measurement units, temperatures and clothing sizes with live rates and instant results.
Tools in this category5
- Currency ConverterReal-time updated exchange rates
- Unit ConverterLength, weight, volume, area and much more
- Temperature ConverterCelsius, Fahrenheit and Kelvin
- Clothing Size ConverterSize chart for BR, US, EU and UK
- Shoe Size ConverterSize chart for BR, US, EU and UK
About these tools
The currency converter uses live exchange rates refreshed daily, so the number you get is the one markets are quoting rather than a stale table. The unit, temperature and size converters work offline in your browser, since the conversion factors never change.
Size conversion is the one place where there is no single correct answer: manufacturers differ, so the charts here follow the standard BR, US, EU and UK reference tables and should be treated as a starting point rather than a guarantee of fit.
Frequently asked questions
How often are exchange rates updated?
Rates come from a public exchange-rate feed that updates daily. The page shows the timestamp of the rate it used.
Which units are supported?
Length, mass, volume, area, speed and temperature, in both metric and imperial systems.
Are the size charts reliable?
They follow the standard BR, US, EU and UK equivalences, but sizing varies between brands — always check the manufacturer's own chart when in doubt.