Convert Millimeters to Centimeters
Enter the length in millimeters below to get the value converted to centimeters.
How to Convert Millimeters to Centimeters
To convert a millimeter measurement to a centimeter measurement, multiply the length by the conversion ratio. One millimeter is equal to 0.1 centimeters, so use this simple formula to convert:
The length in centimeters is equal to the millimeters multiplied by 0.1.
Our inch fraction calculator can add millimeters and centimeters together and it also automatically converts the results to US customary, imperial and SI metric values.
Millimeters and centimeters are both units used to measure length. Keep reading to learn more about each unit of measure.
Millimeters
One millimeter is equal to one-thousandth (1/1,000) of a meter, which is defined as the distance light travels in a vacuum in a 1/299,792,458 second time interval.
The millimeter, or millimetre, is a multiple of the meter, which is the SI base unit for length. In the metric system, "milli" is the prefix for 10-3. Millimeters can be abbreviated as mm, for example 1 millimeter can be written as 1 mm.
Millimeters are often represented by the smallest ticks on most metric rulers. To get a reference point of the size, the thickness of a US dime is 1.35mm.[1]
Centimeters
One centimeter is equal to one-hundredth (1/100) of a meter, which is defined as the distance light travels in a vacuum in a 1/299,792,458 second time interval.
The centimeter, or centimetre, is a multiple of the meter, which is the SI base unit for length. In the metric system, "centi" is the prefix for 10-2. Centimeters can be abbreviated as cm, for example 1 centimeter can be written as 1 cm.
Metric rulers typically have 30 cm, which are represented by 30 large tick marks. To get a rough idea of the actual length of a centimeter, a standard pencil is just about 1cm thick.
We recommend using a ruler or tape measure for measuring length, which can be found at a local retailer or home center. Rulers are available in imperial, metric, or combination with both values, so make sure you get the correct type for your needs.
If you need a ruler you can also download and print our free printable rulers, which include both imperial and metric measurements.
Millimeter Measurements and Equivalent Centimeter Conversions
| Millimeters | Centimeters |
|---|---|
| 1 mm | 0.1 cm |
| 2 mm | 0.2 cm |
| 3 mm | 0.3 cm |
| 4 mm | 0.4 cm |
| 5 mm | 0.5 cm |
| 6 mm | 0.6 cm |
| 7 mm | 0.7 cm |
| 8 mm | 0.8 cm |
| 9 mm | 0.9 cm |
| 10 mm | 1 cm |
| 11 mm | 1.1 cm |
| 12 mm | 1.2 cm |
| 13 mm | 1.3 cm |
| 14 mm | 1.4 cm |
| 15 mm | 1.5 cm |
| 16 mm | 1.6 cm |
| 17 mm | 1.7 cm |
| 18 mm | 1.8 cm |
| 19 mm | 1.9 cm |
| 20 mm | 2 cm |
| 21 mm | 2.1 cm |
| 22 mm | 2.2 cm |
| 23 mm | 2.3 cm |
| 24 mm | 2.4 cm |
| 25 mm | 2.5 cm |
| 26 mm | 2.6 cm |
| 27 mm | 2.7 cm |
| 28 mm | 2.8 cm |
| 29 mm | 2.9 cm |
| 30 mm | 3 cm |
| 31 mm | 3.1 cm |
| 32 mm | 3.2 cm |
| 33 mm | 3.3 cm |
| 34 mm | 3.4 cm |
| 35 mm | 3.5 cm |
| 36 mm | 3.6 cm |
| 37 mm | 3.7 cm |
| 38 mm | 3.8 cm |
| 39 mm | 3.9 cm |
| 40 mm | 4 cm |
References
- United States Mint, Coin Specifications, https://www.usmint.gov/learn/coin-and-medal-programs/coin-specifications
More Millimeter Length Conversions
- Convert to Miles
- 1 mm is equal to 6.2137E-7 miles
- Convert to Yards
- 1 mm is equal to 0.001094 yards
- Convert to Feet
- 1 mm is equal to 0.003281 feet
- Convert to Inches
- 1 mm is equal to 0.03937 inches
- Convert to Kilometers
- 1 mm is equal to 1.0E-6 kilometers
- Convert to Meters
- 1 mm is equal to 0.001 meters
- Convert to Micrometers
- 1 mm is equal to 1,000 micrometers
- Convert to Nanometers
- 1 mm is equal to 1,000,000 nanometers
