With this information, you can calculate the quantity of feet per second 823 knots is equal to.

¿What is the inverse calculation between 1 foot per second and 823 knots?

Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.00071990741 times 823 knots.

Which is the same to say that 823 knots is 1389.0675 feet per second.

Eight hundred twenty-three knots equals to one thousand three hundred eighty-nine feet per second. *Approximation

A foot per second is zero times eight hundred twenty-three knots. *Approximation