With this information, you can calculate the quantity of miles per hour 138 knots is equal to.

¿What is the inverse calculation between 1 mile per hour and 138 knots?

Performing the inverse calculation of the relationship between units, we obtain that 1 mile per hour is 0.0062969293 times 138 knots.

Which is the same to say that 138 knots is 158.80756 miles per hour.

One hundred thirty-eight knots equals to one hundred fifty-eight miles per hour. *Approximation

A mile per hour is zero times one hundred thirty-eight knots. *Approximation