I could as well post this unter "new ideas" or perhaps even "Bugs" but oh well...
http://prntscr.com/d0g62p
See the link please.
So in the fleet page it tells you the distance between your planet and a target. But you never know how great this distance is. That's a annoying nuance for newbies. I would suggest that the unit of "km" or "ckm" is added and that there should be somewhere a explanation for new comers about the measurement of "ckm".