With this information, you can calculate the quantity of miles per hour 870 knots is equal to.
¿What is the inverse calculation between 1 mile per hour and 870 knots?
Performing the inverse calculation of the relationship between units, we obtain that 1 mile per hour is 0.00099882327 times 870 knots.
Which is the same to say that 870 knots is 1001.1781 miles per hour.
Eight hundred seventy knots equals to one thousand one miles per hour. *Approximation
A mile per hour is zero times eight hundred seventy knots. *Approximation