UtilityBaseCalculators
Unit Converter
Convert length, weight, temperature, volume, speed, and data units instantly.
Updated July 7, 2026
How to use the unit converter
- 1Pick the category: length, weight, temperature, volume, speed, or data.
- 2Enter your value and choose the from-unit.
- 3Choose the to-unit — the result updates live, with other units shown below.
- 4Use the swap button to flip the conversion direction instantly.
Common uses
- Converting recipe measurements between metric and US cups/ounces
- Translating product dimensions and weights for international listings
- Converting km/h to mph or Celsius to Fahrenheit while traveling
- Understanding real drive capacity with decimal vs binary data units
Frequently asked questions
Why does temperature convert differently than other units?
Length, weight, and volume convert by multiplication because their scales share a zero. Temperature scales have different zero points, so the conversion needs an offset too: °F = °C × 9/5 + 32, and Kelvin = °C + 273.15. The converter handles this automatically.
What's the difference between MB and MiB?
MB (megabyte) is decimal: 1,000,000 bytes. MiB (mebibyte) is binary: 1,048,576 bytes. Drive makers advertise in decimal while operating systems historically report binary — which is why a 500 GB drive shows ~465 'GB' (really GiB) in Windows. Both unit families are in the data tab.
Are the cup and pint measures US or UK?
US customary: a cup is 8 US fl oz (~237 ml) and a pint is 16 US fl oz. UK imperial differs meaningfully — a UK pint is 20 imperial fl oz (~568 ml) — so double-check the origin of any recipe before converting.
How precise are the conversions?
Factors are defined to 10 significant digits from the exact international definitions (an inch is exactly 25.4 mm, a pound exactly 453.59237 g), so results are precise far beyond everyday needs.
About this tool
The unit converter handles the six categories people actually need — length, weight, temperature, volume, speed, and data — with live conversion as you type and a quick-glance row showing your value in every other unit of the category. Temperature is properly special-cased (Celsius, Fahrenheit, Kelvin aren't simple multiplications), volume uses US customary measures with the UK-pint difference noted, and the data tab includes both decimal (KB, MB, GB) and binary (KiB, MiB, GiB) units — the distinction behind why a '500 GB' drive shows about 465 GB in Windows. Results carry ten significant digits, and everything computes locally.
Like everything on UtilityBase, the unit converter runs entirely in your browser — nothing you enter is uploaded or stored on a server. It's free to use with no account required. Browse more calculators here.
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