## 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 21.2 centimeters into millimeters we have to multiply 21.2 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

21.2 cm → L(mm)

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

L(mm) = 21.2 cm × 10 mm

L(mm) = 212 mm

The final result is:

21.2 cm → 212 mm

We conclude that 21.2 centimeters is equivalent to 212 millimeters:

21.2 centimeters = 212 millimeters

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 millimeter is equal to 0.0047169811320755 × 21.2 centimeters.

Another way is saying that 21.2 centimeters is equal to 1 ÷ 0.0047169811320755 millimeters.

## Approximate result

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

21.2 cm ≅ 212 mm

An alternative is also that one millimeter is approximately zero point zero zero five times twenty-one point 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)
22.2 centimeters 222 millimeters
23.2 centimeters 232 millimeters
24.2 centimeters 242 millimeters
25.2 centimeters 252 millimeters
26.2 centimeters 262 millimeters
27.2 centimeters 272 millimeters
28.2 centimeters 282 millimeters
29.2 centimeters 292 millimeters
30.2 centimeters 302 millimeters
31.2 centimeters 312 millimeters