With this information, you can calculate the quantity of knots 640 feet per minute is equal to.
¿What is the inverse calculation between 1 knot and 640 feet per minute?
Performing the inverse calculation of the relationship between units, we obtain that 1 knot is 0.15823217 times 640 feet per minute.
Which is the same to say that 640 feet per minute is 6.3198272 knots.
Six hundred forty feet per minute equals to six knots. *Approximation
A knot is zero times six hundred forty feet per minute. *Approximation
