45 miles in kilometers

Result

The conversion result is: 45 miles is equivalent to 72.42048 kilometers.^[1]

Conversion formula
How to convert 45 miles to kilometers?

We know (by definition) that: 1 mile = 1.609344 km.

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

1 mile / 45 mile = 1.609344 km / x km

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

x km = (45 mile / 1 mile) * 1.609344 km → x km = 72.42048 km

Conclusion:

45 mile = 72.42048 km

Conversion in the opposite direction

The inverse of the conversion factor is that 1 kilometer is equal to 0.0138082487163852 times 45 miles.

It can also be expressed as: 45 miles is equal to 1 / 0.0138082487163852 kilometers.

Approximation

An approximate numerical result would be: forty-five miles is about seventy-two point four two kilometers, or alternatively, a kilometer is about zero point zero one times forty-five miles.