## Conversion formula

The conversion factor from centimeters to kilometers is 1.0E-5, which means that 1 centimeter is equal to 1.0E-5 kilometers:

1 cm = 1.0E-5 km

To convert 21.6 centimeters into kilometers we have to multiply 21.6 by the conversion factor in order to get the length amount from centimeters to kilometers. We can also form a simple proportion to calculate the result:

1 cm → 1.0E-5 km

21.6 cm → L(km)

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

L(km) = 21.6 cm × 1.0E-5 km

L(km) = 0.000216 km

The final result is:

21.6 cm → 0.000216 km

We conclude that 21.6 centimeters is equivalent to 0.000216 kilometers:

21.6 centimeters = 0.000216 kilometers

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 4629.6296296296 × 21.6 centimeters.

Another way is saying that 21.6 centimeters is equal to 1 ÷ 4629.6296296296 kilometers.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that twenty-one point six centimeters is approximately zero kilometers:

21.6 cm ≅ 0 km

An alternative is also that one kilometer is approximately four thousand six hundred twenty-nine point six three times twenty-one point six centimeters.

## Conversion table

### centimeters to kilometers chart

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

centimeters (cm) kilometers (km)
22.6 centimeters 0 kilometers
23.6 centimeters 0 kilometers
24.6 centimeters 0 kilometers
25.6 centimeters 0 kilometers
26.6 centimeters 0 kilometers
27.6 centimeters 0 kilometers
28.6 centimeters 0 kilometers
29.6 centimeters 0 kilometers
30.6 centimeters 0 kilometers
31.6 centimeters 0 kilometers