Unit Converter

Convert length, weight, temperature, volume, area, speed, data size and time units instantly. 🔒 Runs in your browser

Convert to all units

How to use the Unit Converter

  1. Enter the value you want to convert.
  2. Pick the units to convert from and to (or click ⇄ to swap).
  3. Read the result instantly, with the formula and a full table below.

About this tool

Convert length, weight, temperature, volume, area, speed, data size and time units instantly. It is part of the free Converters collection on Online Tools Harbor. Everything happens locally in your browser, so it is fast and private.

Frequently asked questions

Is the Unit Converter free?

Yes. The Unit Converter is completely free to use, with no sign-up and no limits on normal use.

Is my data safe?

Yes. This tool runs entirely in your web browser using JavaScript. Your text is never uploaded to our servers.

Does it work on mobile?

Yes, it works in any modern browser on phones, tablets and computers. No app to install.

Related tools

Number Base ConverterConvert numbers between binary, octal, decimal, hexadecimal and any base 2–36.Roman Numeral ConverterConvert numbers to Roman numerals (2026 → MMXXVI) and back.Number to Words ConverterSpell out numbers in English words, including cheque/check format.Percentage CalculatorWork out X% of Y, what percent X is of Y, and percentage increase or decrease.Centimeters to Inches (cm to in)Convert centimeters to inches instantly, with the formula and a cm to in conversion table.Inches to Centimeters (in to cm)Convert inches to centimeters instantly, with the formula and a in to cm conversion table.Meters to Feet (m to ft)Convert meters to feet instantly, with the formula and a m to ft conversion table.Feet to Meters (ft to m)Convert feet to meters instantly, with the formula and a ft to m conversion table.Kilometers to Miles (km to mi)Convert kilometers to miles instantly, with the formula and a km to mi conversion table.