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Convert mm to cm, cm to mm - Length Conversion

Convert mm to cm

mm
cm

Convert cm to mm

cm
mm

How to convert mm to cm: Use the conversion calculator titled "Convert mm to cm". Enter a value in the mm field and click on the "Calculate cm" button. Your answer will appear in the cm field.

How to convert cm to mm: Use the conversion calculator titled "Convert cm to mm". Enter a value in the cm field and click on the "Calculate mm" button. Your answer will appear in the mm field.

Conversion Definitions

The following is a list of definitions relating to conversions between millimeters and centimeters.

What is a millimeter (mm)?

A millimeter is a unit of length in the Metric System. The symbol for millimeter is mm. There are 1,000 millimeters in a meter. The International spelling is millimetre.

What is a centimeter (cm)?

A centimeter is a unit of length in the Metric System. The symbol for centimeter is cm. There are 100 centimeters in a meter. The International spelling is centimetre.

How many millimeters in a centimeter?

There are 10 millimeters in a centimeter.

How many centimeters in a millimeter?

There are 0.1 centimeters in a millimeter.

Understanding the Length Units

This table provides a summary of the Length units within their respective measurement systems.

Unit Symbol Measurement System Description
inches in or " US Customary Units (and Imperial)  
feet ft or ' US Customary Units (and Imperial) 1 foot = 12 inches
yards yd US Customary Units (and Imperial) 1 yard = 3 feet
miles mi US Customary Units (and Imperial) 1 mile = 1760 yards or 5280 feet
millimeter mm Metric System 1000 mm = 1 m
centimeter cm Metric System 100 cm = 1 m, 1 cm = 10 mm
decimeter dm Metric System 10 dm = 1 m, 1 dm = 10 cm
meter m Metric System 1 m = 1000 mm, 100 cm, 10 dm
kilometer km Metric System 1 km = 1000 m