Meters to Millimeters converter

To convert meters to millimeters, enter the value in the first field. The result in millimeters is calculated automatically using the exact conversion factor.

1 m = 1000 mm
1 mm = 0.001 m

Formula: mm = m × 1000
m = mm × 0.001

Definitions: 1 mm = 0.001 m

The meter (m) is the SI base unit of length, defined by the distance light travels in a vacuum in 1/299,792,458 of a second. It is used for heights, room dimensions, running tracks and swimming pools.

The millimeter (mm) is one thousandth of a meter. It is the standard unit for small dimensions in engineering drawings, machining and manufacturing, and for measuring rainfall depth.

See the conversion table with commonly used values, handy for quick reference or study.