With this information, you can calculate the quantity of knots 57 feet per minute is equal to.
¿What is the inverse calculation between 1 knot and 57 feet per minute?
Performing the inverse calculation of the relationship between units, we obtain that 1 knot is 1.776642 times 57 feet per minute.
Which is the same to say that 57 feet per minute is 0.56285961 knots.
Fifty-seven feet per minute equals to zero knots. *Approximation
A knot is one times fifty-seven feet per minute. *Approximation