How to convert cm to mm
To convert cm to mm, multiply the value by 10 (or divide it by 0.1).
Step by step: 4 cm to mm
4 cm × 10 = 40 mm
cm to mm: values near 4
| cm | mm |
|---|---|
| 1 cm | 10 mm |
| 1.5 cm | 15 mm |
| 2 cm | 20 mm |
| 2.5 cm | 25 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 |
Good to know
1 inch is defined as exactly 2.54 centimeters, and 1 foot equals 12 inches (0.3048 meters).
Frequently asked questions
What is 4 cm in mm?
4 centimeters = 40 millimeters.
How do I convert cm to mm?
To convert cm to mm, multiply the value by 10 (or divide it by 0.1).
How many centimeters are in 1 millimeter?
1 millimeter = 0.1 centimeters.
What is 4 cm in mm, rounded?
Rounded to two decimal places: 4 centimeters ≈ 40 millimeters.
mm to cm
Need the opposite direction? Use the mm to cm converter.