With this information, you can calculate the quantity of feet per minute 991 knots is equal to.

¿What is the inverse calculation between 1 foot per minute and 991 knots?

Performing the inverse calculation of the relationship between units, we obtain that 1 foot per minute is 9.9644097e-06 times 991 knots.

Which is the same to say that 991 knots is 100357.17 feet per minute.

Nine hundred ninety-one knots equals to one hundred thousand three hundred fifty-seven feet per minute. *Approximation

A foot per minute is nine times nine hundred ninety-one knots. *Approximation