Conversion formula

The conversion factor from decimeters to kilometers is 0.0001, which means that 1 decimeter is equal to 0.0001 kilometers:

1 dm = 0.0001 km

To convert 4221 decimeters into kilometers we have to multiply 4221 by the conversion factor in order to get the length amount from decimeters to kilometers. We can also form a simple proportion to calculate the result:

1 dm → 0.0001 km

4221 dm → L_(km)

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

L_(km) = 4221 dm × 0.0001 km

L_(km) = 0.4221 km

The final result is:

4221 dm → 0.4221 km

We conclude that 4221 decimeters is equivalent to 0.4221 kilometers:

4221 decimeters = 0.4221 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 2.3691068467188 × 4221 decimeters.

Another way is saying that 4221 decimeters is equal to 1 ÷ 2.3691068467188 kilometers.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that four thousand two hundred twenty-one decimeters is approximately zero point four two two kilometers:

4221 dm ≅ 0.422 km

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

Conversion table

decimeters to kilometers chart

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