With this information, you can calculate the quantity of feet per second 891 knots is equal to.

¿What is the inverse calculation between 1 foot per second and 891 knots?

Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.00066496498 times 891 knots.

Which is the same to say that 891 knots is 1503.8386 feet per second.

Eight hundred ninety-one knots equals to one thousand five hundred three feet per second. *Approximation

A foot per second is zero times eight hundred ninety-one knots. *Approximation