How to convert centimeters to millimeters
To convert centimeters (cm) to millimeters (mm), multiply the value in centimeters by 10.
mm = cm × 10
Example: 10 cm = 100 mm.
You can also type 10 cm to mm into the smart calculator, or mix units: 1 cm + 1 mm.
Centimeters to Millimeters conversion table
| Centimeters | Millimeters |
|---|---|
| 0.01 cm | 0.1 mm |
| 0.1 cm | 1 mm |
| 0.25 cm | 2.5 mm |
| 0.5 cm | 5 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 |
| 12 cm | 120 mm |
| 15 cm | 150 mm |
| 20 cm | 200 mm |
| 25 cm | 250 mm |
| 30 cm | 300 mm |
| 40 cm | 400 mm |
| 50 cm | 500 mm |
| 60 cm | 600 mm |
| 75 cm | 750 mm |
| 100 cm | 1,000 mm |
| 250 cm | 2,500 mm |
| 500 cm | 5,000 mm |
| 1,000 cm | 10,000 mm |
Converting millimeters back to centimeters
1 mm = 0.1 cm. See the Millimeters to Centimeters converter, or press the swap button above.
About the units
Centimeter (cm)
One hundredth of a meter. An inch is exactly 2.54 centimeters.
Millimeter (mm)
One thousandth of a meter. Ten millimeters make a centimeter.
Length measures distance in one dimension. The SI base unit is the meter, defined by the distance light travels in a vacuum in 1/299,792,458 of a second. Since the 1959 international yard and pound agreement, imperial and US customary lengths are defined exactly in meters: an inch is exactly 2.54 centimeters.
Questions and answers
How many millimeters are in a centimeter?
One centimeter (cm) equals 10 millimeters (mm).
How do I convert centimeters to millimeters?
To convert centimeters to millimeters, multiply the value in centimeters by 10. The formula is mm = cm × 10. For example, 10 cm = 100 mm.
What is 10 cm in mm?
10 centimeters is 100 millimeters.
Which is bigger, a centimeter or a millimeter?
A centimeter is bigger: 1 cm = 10 mm.
How many centimeters are in a foot?
A foot is exactly 30.48 centimeters, because an inch is defined as exactly 2.54 cm and a foot is 12 inches.
Does this cm to mm converter work offline?
Yes. ConvertEasy is a progressive web app: after your first visit it keeps working with no connection, and you can install it to your home screen from the browser menu.