With this information, you can calculate the quantity of feet per second 80 knots is equal to.

¿What is the inverse calculation between 1 foot per second and 80 knots?

Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.0074060475 times 80 knots.

Which is the same to say that 80 knots is 135.02479 feet per second.

Eighty knots equals to one hundred thirty-five feet per second. *Approximation

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