Centimeters to Millimeters Converter

Use this converter to easily convert between Centimeters and Millimeters (cm to mm).

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How many Millimeters in one Centimeter?

Centimeters and Millimeters both measure length. They are among the most commonly used metric units. The symbol for centimeter is cm, and for millimeter it is mm.

The prefix ‘centi’ indicates that the centimeter is 1/100 of a meter, whereas ‘milli’ means 1/1,000 of – therefore there are 1,000 millimeters in a meter. Putting all of this together, we see that a millimeter is equal to 0.1 cm, or simply – there are 10 mm in 1 cm.

Difference between Centimeters and Millimeters

Centimeters and millimeters are derived from the fundamental unit established by the International System of Units (SI) – the meter. The centimeter and the millimeter being respectively 0.01 and 0.001 of a meter, allow for calculating length and distances with greater precision.

The centimeter is used in everyday tasks – for instance, when taking measures, calculating rainfall levels or conversing map scale to real-world dimensions.

The millimeter is preferred for engineering or mechanical tasks as it measures smaller distances with greater accuracy. It is usually the smallest measurement unit on a ruler. One example of its application is in microwave ovens. Those with frequency of 300 GHz have a wavelength equal to 1 millimeter.

How to convert Centimeters to Millimeters

To transforms centimeters to millimeters, you can use the formula:

cm x 10 = mm,

or just shift the decimal point one position to the right.

Cm to mm conversion example

Sample task: convert 50 cm to millimeters. Solution:

cm * 10 = mm
50 cm * 10 = 500 mm
End result:
50 cm is equal to 500 mm

cm to mm conversion table

cm to mm conversion table
cm mm
1 cm 10 mm
2 cm 20 mm
3 cm 30 mm
4 cm 40 mm
5 cm 50 mm
6 cm 60 mm
7 cm 70 mm
8 cm 80 mm
9 cm 90 mm
10 cm 100 mm
20 cm 200 mm
30 cm 300 mm
40 cm 400 mm
50 cm 500 mm
60 cm 600 mm
70 cm 700 mm
80 cm 800 mm
90 cm 900 mm
100 cm 1,000 mm
200 cm 2,000 mm
300 cm 3,000 mm
400 cm 4,000 mm
500 cm 5,000 mm
600 cm 6,000 mm
700 cm 7,000 mm
800 cm 8,000 mm
900 cm 9,000 mm
1,000 cm 10,000 mm


[1] NIST Special Publication 330 (2008) - "The International System of Units (SI)", edited by Barry N.Taylor and Ambler Thompson

[2] International Organization for Standardization (1993). ISO Standards Handbook: Quantities and units (3rd edition). Geneva: ISO. ISBN 92-67-10185-4.

Cite this converter & page

If you'd like to cite this online converter resource and information as provided on the page, you can use the following citation:
Georgiev G.Z., "Cm to mm Converter", [online] Available at: https://www.gigacalculator.com/converters/convert-cm-to-mm-centimeters-to-millimeters.php URL [Accessed Date: 12 Jun, 2021].