With this information, you can calculate the quantity of knots 810 feet per minute is equal to.
¿What is the inverse calculation between 1 knot and 810 feet per minute?
Performing the inverse calculation of the relationship between units, we obtain that 1 knot is 0.12502295 times 810 feet per minute.
Which is the same to say that 810 feet per minute is 7.9985313 knots.
Eight hundred ten feet per minute equals to seven knots. *Approximation
A knot is zero times eight hundred ten feet per minute. *Approximation