With this information, you can calculate the quantity of feet per minute 681 knots is equal to.

¿What is the inverse calculation between 1 foot per minute and 681 knots?

Performing the inverse calculation of the relationship between units, we obtain that 1 foot per minute is 1.4500338e-05 times 681 knots.

Which is the same to say that 681 knots is 68963.911 feet per minute.

Six hundred eighty-one knots equals to sixty-eight thousand nine hundred sixty-three feet per minute. *Approximation

A foot per minute is one times six hundred eighty-one knots. *Approximation