Centimeter to MillimeterConverter
Instantly convert Centimeter (cm) to Millimeter (mm). Free, accurate, and easy to use.
How to Convert Centimeter to Millimeter
To convert Centimeter (cm) to Millimeter (mm), multiply your value by 10.
Example: 5 cm × 10 = 50 mm
What is a Centimeter?
The centimeter is one hundredth of a meter — equal to 10 millimeters or approximately 0.394 inches. It appears on most rulers and measuring tapes sold outside the United States and is the standard unit for body measurements such as height and waist size. A typical adult fingernail grows roughly 3 mm (0.3 cm) per month. Centimeters are also used for paper sizes and small furniture dimensions worldwide.
What is a Millimeter?
The millimeter is one thousandth of a meter, making it the smallest SI length unit in routine use. Defined exactly as 0.001 m, it equals roughly 1/25 of an inch. Millimeters are the standard for precision engineering, machining tolerances, and clinical measurements. A standard credit card is about 0.76 mm thick, and a human hair averages 0.06–0.08 mm in diameter.
Centimeter to Millimeter Conversion Table
| Centimeter (cm) | Millimeter (mm) |
|---|---|
| 0.001 cm | 0.01 mm |
| 0.01 cm | 0.1 mm |
| 0.1 cm | 1 mm |
| 0.5 cm | 5 mm |
| 1 cm | 10 mm |
| 2 cm | 20 mm |
| 5 cm | 50 mm |
| 10 cm | 100 mm |
| 20 cm | 200 mm |
| 50 cm | 500 mm |
| 100 cm | 1000 mm |
| 200 cm | 2000 mm |
| 500 cm | 5000 mm |
| 1000 cm | 10000 mm |
| 5000 cm | 50000 mm |
| 10000 cm | 100000 mm |
| 50000 cm | 500000 mm |
| 100000 cm | 1000000 mm |
| 1000000 cm | 10000000 mm |
| 1000000000 cm | 1.0000e+10 mm |
Frequently Asked Questions
How do I convert Centimeter to Millimeter?
Multiply the Centimeter value by 10. Formula: mm = cm × 10. Example: 10 cm = 100 mm.
How many Millimeter are in one Centimeter?
One Centimeter (cm) equals 10 Millimeter (mm).
How many Centimeter are in one Millimeter?
One Millimeter (mm) equals 0.1 Centimeter (cm).
What is the exact conversion factor from Centimeter to Millimeter?
The conversion factor is 10. Multiply any cm value by this number to get mm. For the reverse, multiply by 0.1.
How do I convert Millimeter back to Centimeter?
Divide by 10, or equivalently multiply by 0.1. Formula: cm = mm ÷ 10.
Is the Centimeter-to-Millimeter conversion internationally standardized?
Yes. Both units are defined by international standards (SI or the international yard/pound agreement), so the conversion factor 10 is exact and universally agreed upon.