With this information, you can calculate the quantity of knots 400 feet per minute is equal to.
¿What is the inverse calculation between 1 knot and 400 feet per minute?
Performing the inverse calculation of the relationship between units, we obtain that 1 knot is 0.25317148 times 400 feet per minute.
Which is the same to say that 400 feet per minute is 3.949892 knots.
Four hundred feet per minute equals to three knots. *Approximation
A knot is zero times four hundred feet per minute. *Approximation