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 42 centimeters into millimeters we have to multiply 42 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
42 cm → L(mm)
Solve the above proportion to obtain the length L in millimeters:
L(mm) = 42 cm × 10 mm
L(mm) = 420 mm
The final result is:
42 cm → 420 mm
We conclude that 42 centimeters is equivalent to 420 millimeters:
42 centimeters = 420 millimeters
Alternative conversion
We can also convert by utilizing the inverse value of the conversion factor. In this case 1 millimeter is equal to 0.0023809523809524 × 42 centimeters.
Another way is saying that 42 centimeters is equal to 1 ÷ 0.0023809523809524 millimeters.
Approximate result
For practical purposes we can round our final result to an approximate numerical value. We can say that forty-two centimeters is approximately four hundred twenty millimeters:
42 cm ≅ 420 mm
An alternative is also that one millimeter is approximately zero point zero zero two times forty-two 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) |
---|---|
43 centimeters | 430 millimeters |
44 centimeters | 440 millimeters |
45 centimeters | 450 millimeters |
46 centimeters | 460 millimeters |
47 centimeters | 470 millimeters |
48 centimeters | 480 millimeters |
49 centimeters | 490 millimeters |
50 centimeters | 500 millimeters |
51 centimeters | 510 millimeters |
52 centimeters | 520 millimeters |