With this information, you can calculate the quantity of knots 621 feet per minute is equal to.

¿What is the inverse calculation between 1 knot and 621 feet per minute?

Performing the inverse calculation of the relationship between units, we obtain that 1 knot is 0.16307342 times 621 feet per minute.

Which is the same to say that 621 feet per minute is 6.1322073 knots.

Six hundred twenty-one feet per minute equals to six knots. *Approximation

A knot is zero times six hundred twenty-one feet per minute. *Approximation