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Centimeters to Millimeters

Convert centimeters (cm) to millimeters (mm) — instant and accurate

1 cm = 10 mm  ·  To convert centimeters to millimeters, multiply by 10.

10 mm

Centimeters to Millimeters Conversion Table

CentimetersMillimeters
1 cm10 mm
2 cm20 mm
3 cm30 mm
4 cm40 mm
5 cm50 mm
6 cm60 mm
7 cm70 mm
8 cm80 mm
9 cm90 mm
10 cm100 mm
15 cm150 mm
20 cm200 mm
25 cm250 mm
30 cm300 mm
40 cm400 mm
50 cm500 mm
75 cm750 mm
100 cm1000 mm
250 cm2500 mm
500 cm5000 mm
1000 cm10000 mm

Formula

millimeters = centimeters × 10
centimeters = millimeters × 0.1
Example: 5 cm × 10 = 50 mm

About the Centimeters-to-Millimeters Conversion

You typically need to convert centimeters to millimeters when interpreting specifications or documentation that originated under a different measurement convention. Centimeters is standard in everyday measurements such as height, clothing sizes, and small objects in metric-system countries, while millimeters prevails in engineering tolerances, manufacturing specifications, and precision work. Both units belong to the metric system, so the conversion shifts decimal places cleanly. One cm = 10 mm.

Real-World Examples

  • 1 cm (one centimetre) = 10 mm
  • 10 cm (10 cm) = 100 mm
  • 2.54 cm (one inch) = 25.4 mm
  • 0.1 cm (one millimetre) = 1 mm

Millimeters to Centimeters (Reverse)

MillimetersCentimeters
1 mm0.1 cm
2 mm0.2 cm
3 mm0.3 cm
4 mm0.4 cm
5 mm0.5 cm
6 mm0.6 cm
7 mm0.7 cm
8 mm0.8 cm
9 mm0.9 cm
10 mm1 cm
15 mm1.5 cm
20 mm2 cm
25 mm2.5 cm
30 mm3 cm
40 mm4 cm
50 mm5 cm
75 mm7.5 cm
100 mm10 cm
250 mm25 cm
500 mm50 cm
1000 mm100 cm

Frequently Asked Questions

How many millimeters are in a centimeter?

1 centimeter equals 10 millimeters.

How do I convert centimeters to millimeters?

Multiply the value in centimeters by 10 to get millimeters. For example, 5 cm × 10 = 50 mm.

How do I convert millimeters back to centimeters?

Multiply the value in millimeters by 0.1 to get centimeters. Equivalently, divide by 10.

How many centimeters are in a millimeter?

1 millimeter equals 0.1 centimeters.

Is the centimeters-to-millimeters conversion exact?

Yes. 1 cm = 10 mm is an exact value defined by international agreement.

About Centimeters and Millimeters

The centimetre (symbol cm) equals one hundredth of a metre and is widely used for everyday measurements throughout most of the world.

The millimetre (symbol mm) equals one thousandth of a metre and is the standard unit for precision engineering and small-scale specifications.

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