40 miles per hour in kilometers per hour

Conversion in the opposite direction

The inverse of the conversion factor is that 1 kilometer per hour is equal to 0.0155342798059334 times 40 miles per hour.

It can also be expressed as: 40 miles per hour is equal to $\frac{1}{\mathrm{0.0155342798059334}}$ kilometers per hour.

Approximation

An approximate numerical result would be: forty miles per hour is about sixty-four point three seven kilometers per hour, or alternatively, a kilometer per hour is about zero point zero two times forty miles per hour.