## 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 12.4 centimeters into millimeters we have to multiply 12.4 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

12.4 cm → L(mm)

Solve the above proportion to obtain the length L in millimeters:

L(mm) = 12.4 cm × 10 mm

L(mm) = 124 mm

The final result is:

12.4 cm → 124 mm

We conclude that 12.4 centimeters is equivalent to 124 millimeters:

12.4 centimeters = 124 millimeters

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 millimeter is equal to 0.0080645161290323 × 12.4 centimeters.

Another way is saying that 12.4 centimeters is equal to 1 ÷ 0.0080645161290323 millimeters.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that twelve point four centimeters is approximately one hundred twenty-four millimeters:

12.4 cm ≅ 124 mm

An alternative is also that one millimeter is approximately zero point zero zero eight times twelve point four 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)
13.4 centimeters 134 millimeters
14.4 centimeters 144 millimeters
15.4 centimeters 154 millimeters
16.4 centimeters 164 millimeters
17.4 centimeters 174 millimeters
18.4 centimeters 184 millimeters
19.4 centimeters 194 millimeters
20.4 centimeters 204 millimeters
21.4 centimeters 214 millimeters
22.4 centimeters 224 millimeters