A knot is defined as follows (if I remember well):
If you travel one nautical mile per hour, your speed is exactly one knot.
Therefor, one knot is one nautical mile per hour.
I don't know how many statue miles that is, or how do you call that? However, I do know that it's about 1.5 kilometer, so one knot is more than one statue mile per hour.
Plz correct me if I'm wrong
Ivan Coninx - Brussels Aviation Photography