721 centimeters in kilometers

Result

The conversion result is: 721 centimeters is equivalent to 0.00721 kilometers.^[1]

Conversion formula
How to convert 721 centimeters to kilometers?

We know (by definition) that: 1 cm = 1e-05 km.

We can set up a proportion to solve for the number of kilometers.

1 cm / 721 cm = 1e-05 km / x km

Now, we cross multiply to solve for our unknown x:

x km = (721 cm / 1 cm) * 1e-05 km → x km = 0.00721 km

Conclusion:

721 cm = 0.00721 km

Conversion in the opposite direction

The inverse of the conversion factor is that 1 kilometer is equal to 138.69625520111 times 721 centimeters.

It can also be expressed as: 721 centimeters is equal to 1 / 138.69625520111 kilometers.

Approximation

An approximate numerical result would be: seven hundred and twenty-one centimeters is about zero point zero one kilometers, or alternatively, a kilometer is about one hundred and thirty-eight point six nine times seven hundred and twenty-one centimeters.