With this information, you can calculate the quantity of miles per hour 42 knots is equal to.

¿What is the inverse calculation between 1 mile per hour and 42 knots?

Performing the inverse calculation of the relationship between units, we obtain that 1 mile per hour is 0.020689911 times 42 knots.

Which is the same to say that 42 knots is 48.332737 miles per hour.

Forty-two knots equals to forty-eight miles per hour. *Approximation

A mile per hour is zero times forty-two knots. *Approximation