Unit Converters
Length, weight, temperature, area, volume, speed, pressure and more, each with the units you actually meet in practice rather than a token three. Conversions are exact where the definition is exact and clearly rounded where it is not.
13 tools · 13 run entirely in your browser
Area Converter
Square meters, acres, hectares, square feet — all in one.
In-browserCurrency Converter
Convert between 30+ currencies at live European Central Bank reference rates.
In-browserData Converter
Bits to terabytes — decimal and binary (KiB, MiB, GiB).
In-browserLength Converter
Meters, feet, miles, light-years — 20+ length units.
In-browserPower Converter
Watts, kilowatts, horsepower, BTU/hr and more.
In-browserPressure Converter
Pascals, bars, psi, atmospheres — many-decimal accuracy.
In-browserSpeed Converter
Km/h, mph, knots, m/s, Mach — convert all common units.
In-browserTemperature Converter
Celsius, Fahrenheit, Kelvin and Rankine, instantly.
In-browserTime Converter
Seconds to years, with leap years, weeks and astro units.
In-browserTorque Converter
Newton-meters, foot-pounds, kgf·cm and more.
In-browserVoltage Converter
Volts, millivolts, kilovolts and electronvolts.
In-browserVolume Converter
Liters, gallons, cups, cubic meters — metric and US units.
In-browserWeight Converter
Kilograms, pounds, stones, tonnes — imperial & metric.
In-browserFrequently asked questions
How many Unit Converters does ToolMunch have?
13 right now, and every one of them runs entirely in your browser. The grid on this page is the complete set — it is generated from the catalogue, so it is never a stale list.
Are the Unit Converters free to use?
Yes, all 13 of them. No trial, no premium tier holding back the main feature, and no daily or hourly cap on how many times you can use one.
Do I need an account to use the Unit Converters?
No. There is no account, no email address, and no login. Open the tool you need, do the job, and take the result.
Where do the Unit Converters do their work?
On your own device. Every tool on this page does its work inside your browser tab, so nothing you open or type is uploaded and there is no copy of it sitting on a server.
Do the Unit Converters work on Mac, Windows, and phones?
Yes. Everything here runs in a modern web browser on Windows, macOS, Linux, Chromebook, Android, and iOS. There is nothing to download or install.