With this information, you can calculate the quantity of feet per second 438 knots is equal to.

¿What is the inverse calculation between 1 foot per second and 438 knots?

Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.0013527027 times 438 knots.

Which is the same to say that 438 knots is 739.26072 feet per second.

Four hundred thirty-eight knots equals to seven hundred thirty-nine feet per second. *Approximation

A foot per second is zero times four hundred thirty-eight knots. *Approximation