Convert cm to mm
Type the number of centimeters that you wish to convert to millimeters.
How to Convert Centimeters to Millimeters
The centimeter and millimeter are both units of length. By definition, 1 centimeter equals exactly 10 millimeters. This means to convert centimeters to millimeters, you multiply by 10.
Formula
Step-by-Step Example
Convert 5 cm to millimeters:
We need to convert centimeters to millimeters
Since 1 cm = 10 mm, multiply by 10
5 × 10 = 50
5 cm = 50 mm
Centimeter to Millimeter Conversion Table
Quick reference table for common centimeter to millimeter conversions. Click any value for detailed calculation.
| Centimeters (cm) | Millimeters (mm) |
|---|---|
| 1 cm | 10 mm |
| 2 cm | 20 mm |
| 5 cm | 50 mm |
| 10 cm | 100 mm |
| 15 cm | 150 mm |
| 20 cm | 200 mm |
| 25 cm | 250 mm |
| 50 cm | 500 mm |
| 100 cm | 1000 mm |
About These Units
Centimeter (cm)
A centimeter (cm) is a metric unit of length equal to 1/100 of a meter or 0.3937 inches. Centimeters are widely used worldwide for measuring height, body dimensions, clothing sizes, screen diagonals, and small objects. Key conversion: 1 inch = 2.54 cm exactly.
Millimeter (mm)
A millimeter (mm) is a metric unit of length equal to 1/1000 of a meter or 0.03937 inches. Millimeters are essential for precision measurements in engineering, manufacturing, medical imaging, and rainfall measurements. There are 25.4 mm in one inch.
Frequently Asked Questions
How do I convert centimeters to millimeters?
To convert centimeters to millimeters, multiply the value by 10. For example, 10 cm = 100 mm.
How many millimeters are in 1 centimeter?
1 centimeter equals 10 millimeters.
What is the formula for centimeters to millimeters?
The formula is: mm = cm × 10.