Conversion formula

The conversion factor from millimeters to centimeters is 0.1, which means that 1 millimeter is equal to 0.1 centimeters:

1 mm = 0.1 cm

To convert 20.8 millimeters into centimeters we have to multiply 20.8 by the conversion factor in order to get the length amount from millimeters to centimeters. We can also form a simple proportion to calculate the result:

1 mm → 0.1 cm

20.8 mm → L_(cm)

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

L_(cm) = 20.8 mm × 0.1 cm

L_(cm) = 2.08 cm

The final result is:

20.8 mm → 2.08 cm

We conclude that 20.8 millimeters is equivalent to 2.08 centimeters:

20.8 millimeters = 2.08 centimeters

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 centimeter is equal to 0.48076923076923 × 20.8 millimeters.

Another way is saying that 20.8 millimeters is equal to 1 ÷ 0.48076923076923 centimeters.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that twenty point eight millimeters is approximately two point zero eight centimeters:

20.8 mm ≅ 2.08 cm

An alternative is also that one centimeter is approximately zero point four eight one times twenty point eight millimeters.

Conversion table

millimeters to centimeters chart

For quick reference purposes, below is the conversion table you can use to convert from millimeters to centimeters