Centimeters to Millimeters (cm to mm) Converter
1 centimeter (cm) = 10 millimeters (mm). To convert centimeters to millimeters, multiply by 10: 175 cm × 10 = 1,750 mm. Also searched as centimetres to millimetres.
Quick facts
- 1 cm = 10 mm
- 1 mm = 0.1 cm
- Formula: mm = cm × 10
- Quick estimate: multiply by about 10
How to convert centimeters to millimeters
- Take the value in centimeters.
- Multiply it by 10 (the number of millimeters in one centimeter).
- Round the result to the precision you need.
Worked example (a person's height): 175 cm × 10 = 1750 mm.
To convert millimeters back to centimeters, multiply by 0.1, or divide by 10.
Source: NIST Special Publication 811 (2008), Appendix B; the international yard and pound agreement of 1959 (1 inch = 25.4 mm exactly).
Centimeters to Millimeters conversion table
| Centimeters [cm] | Millimeters [mm] |
|---|---|
| 0.01 cm | 0.1 mm |
| 0.1 cm | 1 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 |
| 50 cm | 500 mm |
| 100 cm | 1000 mm |
| 1000 cm | 10000 mm |
cm to mm chart from 1 to 100
- 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
- 11 cm 110 mm
- 12 cm 120 mm
- 13 cm 130 mm
- 14 cm 140 mm
- 15 cm 150 mm
- 16 cm 160 mm
- 17 cm 170 mm
- 18 cm 180 mm
- 19 cm 190 mm
- 20 cm 200 mm
- 25 cm 250 mm
- 30 cm 300 mm
- 35 cm 350 mm
- 40 cm 400 mm
- 45 cm 450 mm
- 50 cm 500 mm
- 55 cm 550 mm
- 60 cm 600 mm
- 65 cm 650 mm
- 70 cm 700 mm
- 75 cm 750 mm
- 80 cm 800 mm
- 85 cm 850 mm
- 90 cm 900 mm
- 95 cm 950 mm
- 100 cm 1000 mm
Millimeters to Centimeters conversion table
| Millimeters [mm] | Centimeters [cm] |
|---|---|
| 0.01 mm | 0.001 cm |
| 0.1 mm | 0.01 cm |
| 1 mm | 0.1 cm |
| 2 mm | 0.2 cm |
| 3 mm | 0.3 cm |
| 5 mm | 0.5 cm |
| 10 mm | 1 cm |
| 20 mm | 2 cm |
| 50 mm | 5 cm |
| 100 mm | 10 cm |
| 1000 mm | 100 cm |
Centimeters vs Millimeters
| Centimeter | Millimeter | |
|---|---|---|
| Symbol | cm | mm |
| Equals | 1 cm = 10 mm | 1 mm = 0.1 cm |
What is a centimeter?
One hundredth of a meter — a common everyday metric unit. Used worldwide for height, clothing sizes, and small object measurements outside the US.
What is a millimeter?
One thousandth of a meter, the SI base unit of length. Used for small, precise measurements in engineering, printing, and manufacturing tolerances.
Frequently asked questions
How many millimeters are in a centimeter?
There are 10 millimeters in 1 centimeter (1 cm = 10 mm).
How many centimeters are in a millimeter?
There are 0.1 centimeters in 1 millimeter (1 mm = 0.1 cm).
How do I convert centimeters to millimeters?
Multiply the number of centimeters by 10. For example, 10 cm × 10 = 100 mm. To convert back, multiply by 0.1.
What is 10 cm in millimeters?
10 cm = 100 mm.
What is 100 cm in millimeters?
100 cm = 1,000 mm.
Is the conversion exact?
Yes. The factor comes from the official definitions of both units (NIST Special Publication 811 (2008), Appendix B; the international yard and pound agreement of 1959 (1 inch = 25.4 mm exactly)). Results are shown to up to 10 decimal places; round them to suit your purpose.
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