With this information, you can calculate the quantity of knots 18 feet per minute is equal to.
¿What is the inverse calculation between 1 knot and 18 feet per minute?
Performing the inverse calculation of the relationship between units, we obtain that 1 knot is 5.6260329 times 18 feet per minute.
Which is the same to say that 18 feet per minute is 0.17774514 knots.
Eighteen feet per minute equals to zero knots. *Approximation
A knot is five times eighteen feet per minute. *Approximation