This discussion reminds me of when I wanted (for God knows what reason) to know how far any given hex (as I happened to be working in the Marches) was from the navigational reference Reference. I actually wrote some PHP code to figure out how many hexes across and down one needed to get to reach reference (taking into account where Reference sat in its own sector).
I don't still have that handy or I'd share it for your amusement (even though it won't solve Jeff's problem) or if I do, its in an old computer that may or may not boot.
I also did a bit of a calculator that took two inputs: volume of air in a shipboard area and surface area of a hole punched through it to tell you how long you had until one or more thresholds of low air pressure would cause various symptoms like passing out or dying. I always felt a real space game needed that info.
That's probably either gone or on the same computer.