About HowMuch

HowMuch is a free online unit converter built for anyone who needs quick, reliable conversions — without ads, registration, or distractions. It is the English companion to KolikoJe, a calculator platform for the Western Balkans region.

We built HowMuch because everyday conversions — length, weight, temperature, scientific notation, electrical units — are scattered across sites that bury the answer in clutter. Our goal is a single, fast, accurate tool that works the same on mobile and desktop, in light and dark mode, without requiring a single click beyond typing the number.

What we cover

  • Length & distance — metres, feet, miles, nautical miles, light-years and more
  • Weight & mass — kilograms, pounds, ounces, stone, atomic mass units
  • Temperature — Celsius, Fahrenheit, Kelvin, Rankine
  • Volume — litres, gallons (US/UK), fluid ounces, cubic metres
  • Area — square metres, acres, hectares, square feet
  • Speed — km/h, mph, knots, Mach number
  • Scientific — moles, millimoles, scientific notation prefixes
  • Electrical — ohms, farads, henries, amperes, volts, hertz
  • Data — bytes, kilobytes, megabytes, gigabytes, terabytes

All conversions run entirely in your browser — nothing is sent to a server. Conversion factors are based on SI definitions and internationally recognised standards. Where applicable, we note the source standard so you can verify independently.

Results are provided for informational and educational purposes. For engineering, pharmaceutical, legal, or financial decisions, always verify from the authoritative source for your jurisdiction or field.

Questions, corrections, or suggestions? Contact us.