With this information, you can calculate the quantity of knots 39 miles per hour is equal to.
¿What is the inverse calculation between 1 knot and 39 miles per hour?
Performing the inverse calculation of the relationship between units, we obtain that 1 knot is 0.029507165 times 39 miles per hour.
Which is the same to say that 39 miles per hour is 33.890073 knots.
Thirty-nine miles per hour equals to thirty-three knots. *Approximation
A knot is zero times thirty-nine miles per hour. *Approximation