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Millimeters to Meters (mm to m) Converter

1 millimeter (mm) = 0.001 meters (m). To convert millimeters to meters, multiply by 0.001: 297 mm × 0.001 = 0.297 m. Also searched as millimetres to metres.

1 mm = 0.001 m
Convert the other way: Meters to Millimeters

Quick facts

How to convert millimeters to meters

  1. Take the value in millimeters.
  2. Multiply it by 0.001 (the number of meters in one millimeter).
  3. Round the result to the precision you need.
m = mm × 0.001

Worked example (the long side of an A4 sheet): 297 mm × 0.001 = 0.297 m.

To convert meters back to millimeters, multiply by 1,000, or divide by 0.001.

Source: NIST Special Publication 811 (2008), Appendix B; the international yard and pound agreement of 1959 (1 inch = 25.4 mm exactly).

Millimeters to Meters conversion table

Millimeters to Meters conversion table
Millimeters [mm]Meters [m]
0.01 mm0.00001 m
0.1 mm0.0001 m
1 mm0.001 m
2 mm0.002 m
3 mm0.003 m
5 mm0.005 m
10 mm0.01 m
20 mm0.02 m
50 mm0.05 m
100 mm0.1 m
1000 mm1 m

mm to m chart from 1 to 100

Meters to Millimeters conversion table

Meters to Millimeters conversion table
Meters [m]Millimeters [mm]
0.01 m10 mm
0.1 m100 mm
1 m1000 mm
2 m2000 mm
3 m3000 mm
5 m5000 mm
10 m10000 mm
20 m20000 mm
50 m50000 mm
100 m100000 mm
1000 m1000000 mm

Millimeters vs Meters

MillimeterMeter
Symbolmmm
Equals1 mm = 0.001 m1 m = 1,000 mm

What is a millimeter?

One thousandth of a meter, the SI base unit of length. Used for small, precise measurements in engineering, printing, and manufacturing tolerances.

What is a meter?

The SI base unit of length, originally defined from the Earth's meridian and now fixed by the speed of light. The standard unit of length across science, construction, and everyday use in most of the world.

Frequently asked questions

How many meters are in a millimeter?

There are 0.001 meters in 1 millimeter (1 mm = 0.001 m).

How many millimeters are in a meter?

There are 1,000 millimeters in 1 meter (1 m = 1000 mm).

How do I convert millimeters to meters?

Multiply the number of millimeters by 0.001. For example, 10 mm × 0.001 = 0.01 m. To convert back, multiply by 1,000.

What is 10 mm in meters?

10 mm = 0.01 m.

What is 100 mm in meters?

100 mm = 0.1 m.

Is the conversion exact?

Yes. The factor comes from the official definitions of both units (NIST Special Publication 811 (2008), Appendix B; the international yard and pound agreement of 1959 (1 inch = 25.4 mm exactly)). Results are shown to up to 10 decimal places; round them to suit your purpose.

Popular length conversions

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Reviewed by

Dr. Muhammad Amjad Khadim PhD Mathematics

Dr. Muhammad Amjad Khadim holds a PhD in Mathematics. He writes and reviews the guides on pakmath.com and checks every formula, conversion factor and worked example against published standards and official guidance before it goes live. Spotted an error? Tell us and it will be corrected.