With this information, you can calculate the quantity of feet per second 249 knots is equal to.

¿What is the inverse calculation between 1 foot per second and 249 knots?

Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.002379453 times 249 knots.

Which is the same to say that 249 knots is 420.26465 feet per second.

Two hundred forty-nine knots equals to four hundred twenty feet per second. *Approximation

A foot per second is zero times two hundred forty-nine knots. *Approximation