It would be great though if the chart had on it the math that was involved in determining that result. That way I could make more specific calculations about travel.
EDIT> I just found this scrawled on a piece of paper I had in my "SH3 Manual TDC" notes. Yes I have notes.
Distance travelled = Speed in knots X Hours X 1.852
This is for Kilometers. That means that if you're going 1 knots then you are going 1.852 Km/h.
EDIT #2 Check this out. I just found it.
http://www.plasma.com/classroom/converterspeed.htm