Conversion formula

The conversion factor from meters to kilometers is 0.001, which means that 1 meter is equal to 0.001 kilometers:

1 m = 0.001 km

To convert 21 meters into kilometers we have to multiply 21 by the conversion factor in order to get the length amount from meters to kilometers. We can also form a simple proportion to calculate the result:

1 m → 0.001 km

21 m → L_(km)

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

L_(km) = 21 m × 0.001 km

L_(km) = 0.021 km

The final result is:

21 m → 0.021 km

We conclude that 21 meters is equivalent to 0.021 kilometers:

21 meters = 0.021 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 47.619047619048 × 21 meters.

Another way is saying that 21 meters is equal to 1 ÷ 47.619047619048 kilometers.

Approximate result

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

21 m ≅ 0.021 km

An alternative is also that one kilometer is approximately forty-seven point six one nine times twenty-one meters.

Conversion table

meters to kilometers chart

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