40 kilometers per hour in miles per hour

Conversion in the opposite direction

The inverse of the conversion factor is that 1 mile per hour is equal to 0.0402336 times 40 kilometers per hour.

It can also be expressed as: 40 kilometers per hour is equal to $\frac{1}{\mathrm{0.0402336}}$ miles per hour.

Approximation

An approximate numerical result would be: forty kilometers per hour is about twenty-four point eight five miles per hour, or alternatively, a mile per hour is about zero point zero four times forty kilometers per hour.