What is a Millimeter (mm)?

A millimeter (mm) is a unit of length in the metric system, equal to one thousandth of a meter (0.001 m).

Definition

Symbol

mm

Category

Length

System

Metric

1 {unit} = {value} {otherUnit}

1 Millimeter = 0.1 Centimeter (cm)

1 Millimeter = 0.001 Meter (m)

1 Millimeter = 0.000001 Kilometer (km)

1 Millimeter = 0.0393701 Inch (in)

1 Millimeter = 0.00328084 Foot (ft)

Common Uses

  • Engineering precision
  • Small object measurement
  • Rainfall measurement

Millimeter Conversions

Related Units