Unit Converter
Length, mass, volume, speed, data, energy and 8 more categories.
1 Millimeter = 0.001 Meter
All units
| Unit | Value |
|---|---|
| Millimeter (input) | 1 |
| Centimeter | 0.1 |
| Meter | 0.001 |
| Kilometer | 0.000001 |
| Inch | 0.03937008 |
| Foot | 0.00328084 |
| Yard | 0.00109361 |
| Mile | 0.00000062 |
| Nautical mile | 0.00000054 |
| Light year | 0 |
About the Unit Converter
Convert between units across 13 categories: length, mass, area, volume, speed, time, digital storage, pressure, energy, power, angle, frequency and temperature. Enter a value once and see it expressed in every unit of the category at once, from millimeters to light years or watts to horsepower.
How to use the Unit Converter
- Pick a category from the dropdown, for example Length or Digital storage.
- Type a value in the From field and choose its unit below.
- Select the target unit under To, or read the All units table for every conversion at once.
- Change either unit at any time โ the result and table update instantly.
Unit Converter FAQ
Which categories are included?
Thirteen in total โ length, mass, area, volume, speed, time, digital storage, pressure, energy, power, angle, frequency and temperature โ each with its full set of metric and imperial units.
How are digital units handled?
Both decimal (KB, MB, GB) and binary (KiB, MiB, GiB, TiB) definitions are available, so 1 GB converts as 1000 bytes-based units while 1 GiB uses 1024.
Does temperature use special formulas?
Yes. Unlike the factor-based categories, Celsius, Fahrenheit, Kelvin and Rankine are converted through proper offset formulas rather than simple multiplication.