With this information, you can calculate the quantity of feet per second 3 knots is equal to.

¿What is the inverse calculation between 1 foot per second and 3 knots?

Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.1974946 times 3 knots.

Which is the same to say that 3 knots is 5.0634296 feet per second.

Three knots equals to five feet per second. *Approximation

A foot per second is zero times three knots. *Approximation