Unit Converter

Convert between metric and imperial units — length, weight, temperature and digital data — with exact conversion factors, right in your browser.

Convert length, weight, temperature and digital data units instantly.

1 Millimeter = 0.1 Centimeter

Output ready, 3 B

How to use Unit Converter

  1. Pick the category: length, weight, temperature or data.
  2. Choose the unit you are converting from and the one you need.
  3. Enter a value — the result updates instantly.
  4. Save recent conversions to the in-memory history for quick reference.

Frequently asked questions

Which unit systems are supported?

Metric and US customary units: meters, inches, feet, miles; grams, kilograms, ounces, pounds; Celsius, Fahrenheit, Kelvin; and bits, bytes, kilobytes, megabytes, gigabytes and their binary variants.

How accurate are the conversions?

Standard published factors are used (for example, 1 inch = 25.4 mm exactly). Rounding happens only in the display, never in the math.

Can I use it offline?

Once the page is loaded, conversions run locally, so an interrupted connection does not stop you.

How is digital data converted?

Decimal units use powers of 1000 and binary units use powers of 1024, so you can switch between KB, MB, GB and KiB, MiB as needed.