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Convert meters to millimeters (m to mm)

Type a value in meters or in millimeters: the other field updates as you type. Below you will find the formula, a worked example and a m to mm chart.

Updated on

1 m = 1,000 mm

How to convert meters to millimeters

Formula: mm = m × 1,000

Worked example: 100 m → 100 × 1,000 = 100,000 mm

Meters to millimeters conversion chart

Meters (m)Millimeters (mm)
1 m1,000 mm
2 m2,000 mm
3 m3,000 mm
4 m4,000 mm
5 m5,000 mm
6 m6,000 mm
7 m7,000 mm
8 m8,000 mm
9 m9,000 mm
10 m10,000 mm
12 m12,000 mm
15 m15,000 mm
20 m20,000 mm
25 m25,000 mm
30 m30,000 mm
40 m40,000 mm
50 m50,000 mm
75 m75,000 mm
100 m100,000 mm
250 m250,000 mm
500 m500,000 mm
1,000 m1,000,000 mm

What is a meter?

The meter is the SI base unit of length. Since 1983 it has been defined as the distance light travels in a vacuum in 1/299,792,458 of a second. It is a little longer than a yard: one meter is about 1.0936 yards or 3.2808 feet.

What is a millimeter?

The millimeter is one thousandth of a meter. It is the unit of engineering drawings, metric bolts and drill bits, camera focal lengths, jewelry and rainfall in most countries. In the US it shows up on tools, packaging and anything built to metric standards.

Frequently asked questions

How many millimeters are in a meter?

A meter equals 1,000 millimeters. To convert any value, multiply the number of meters by 1,000.

How do you convert meters to millimeters?

Use the formula mm = m × 1,000. Example: 100 m → 100 × 1,000 = 100,000 mm.

How many meters are in a millimeter?

A millimeter equals 0.001 meters. That is the reverse conversion, from millimeters to meters.

Results are rounded to 6 significant digits; the conversion factors are the exact legal definitions.