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Cm to mm Converter (Centimeters to Millimeters)

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

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100 cm = 1,000 mm

1 cm
10 mm
1 mm
0.1 cm
10 cm
100 mm
100 cm
1,000 mm

How to convert cm to mm

1 centimeter equals 10 millimeters, so the conversion is a single multiplication.

mm = cm × 10

Example: 150 cm × 10 = 1,500 mm.

About the centimeter and the millimeter

Centimeter (cm)

A centimeter is one hundredth of a meter. It's the usual unit for height, clothing sizes and screen measurements in metric countries.

Millimeter (mm)

A millimeter is one thousandth of a meter, the unit used on rulers, tools and technical drawings.

1 centimeter in every length unit

Inches0.3937 inMeters0.01 mFeet0.03281 ft
Kilometers0.00001 km
Miles0.000006214 mi
Millimeters10 mm
Yards0.01094 yd
Nautical Miles0.0000054 nmi
Micrometers10,000 µm
Nanometers10,000,000 nm
Mils393.701 mil
Hands0.09843 hh
Fathoms0.005468 ftm
Rods0.001988 rd
Chains0.0004971 ch
Furlongs0.00004971 fur
Astronomical Units6.685e-14 au
Light-Years1.057e-18 ly

Calculators

Guides

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cm to mm FAQ

How many millimeters are in a centimeter?

1 centimeter = 10 millimeters.

How many centimeters are in a millimeter?

1 millimeter = 0.1 centimeters.

How do I convert cm to mm?

Use mm = cm × 10. For example, 10 cm = 100 mm.

Can I print this cm to mm chart?

Yes. Use "Print / Save PDF" next to the converter for a one-page chart, or "Download CSV" to open it in Excel or Google Sheets.