Centimeters to Millimeters – centimeter to millimeter Converter
1 cm = 10 mm
Formula
mm = cm × 10
Centimeters to millimeters conversion table
| centimeters (cm) | millimeters (mm) |
|---|---|
| 0.5 cm | 5 mm |
| 1 cm | 10 mm |
| 2 cm | 20 mm |
| 3 cm | 30 mm |
| 5 cm | 50 mm |
| 10 cm | 100 mm |
| 20 cm | 200 mm |
| 25 cm | 250 mm |
| 50 cm | 500 mm |
| 75 cm | 750 mm |
| 100 cm | 1000 mm |
| 250 cm | 2500 mm |
| 500 cm | 5000 mm |
| 1000 cm | 10000 mm |
| 5000 cm | 50000 mm |
Centimeters and millimeters are both length units. One centimeter equals 10 millimeters; enter any value above for an instant result, or use the table for common conversions.
Sanity-check examples
1 cm = 10 mm10 cm = 100 mm100 cm = 1000 mm
Common pitfalls and look-alike units
The international statute mile is exactly 1.60934 km; the nautical mile is a different unit (1 nmi = 1.852 km) that shows up in knots. Chinese market units follow the modern definitions 1 li = 500 m, 1 chi = 1/3 m, 1 cun = 1/30 m — older chi varied by dynasty (roughly 0.32–0.35 m), so do not apply them to historical measurements.
Frequently asked questions
How many millimeters are in a centimeter?
1 centimeter (cm) equals 10 millimeter (mm).
How do I convert centimeters to millimeters?
Multiply the centimeter value by 10 to get millimeter — for example, 2 centimeters = 20 millimeter.
How do I convert millimeters back to centimeters?
1 millimeter equals 0.1 centimeter. Use the swap button or the reverse conversion page linked on this page.