Unit Converter
Conversion formula
The conversion factor from centimeters to millimeters is 10, which means that 1 centimeter is equal to 10 millimeters:
1 cm = 10 mm
To convert 31 centimeters into millimeters we have to multiply 31 by the conversion factor in order to get the length amount from centimeters to millimeters. We can also form a simple proportion to calculate the result:
1 cm → 10 mm
31 cm → L(mm)
Solve the above proportion to obtain the length L in millimeters:
L(mm) = 31 cm × 10 mm
L(mm) = 310 mm
The final result is:
31 cm → 310 mm
We conclude that 31 centimeters is equivalent to 310 millimeters:
31 centimeters = 310 millimeters
Alternative conversion
We can also convert by utilizing the inverse value of the conversion factor. In this case 1 millimeter is equal to 0.0032258064516129 × 31 centimeters.
Another way is saying that 31 centimeters is equal to 1 ÷ 0.0032258064516129 millimeters.
Approximate result
For practical purposes we can round our final result to an approximate numerical value. We can say that thirty-one centimeters is approximately three hundred ten millimeters:
31 cm ≅ 310 mm
An alternative is also that one millimeter is approximately zero point zero zero three times thirty-one centimeters.
Conversion table
centimeters to millimeters chart
For quick reference purposes, below is the conversion table you can use to convert from centimeters to millimeters
centimeters (cm) | millimeters (mm) |
---|---|
32 centimeters | 320 millimeters |
33 centimeters | 330 millimeters |
34 centimeters | 340 millimeters |
35 centimeters | 350 millimeters |
36 centimeters | 360 millimeters |
37 centimeters | 370 millimeters |
38 centimeters | 380 millimeters |
39 centimeters | 390 millimeters |
40 centimeters | 400 millimeters |
41 centimeters | 410 millimeters |