EVE Online and a Universe-Class Mass Conveyor from Warhammer 40K? You have?! Well, you're in luck because DeviantArt user ~DirkLoechel has been assembling one of the largest and most comprehensive size-comparison charts for sci-fi ships.
The chart, which is still an ongoing project, spotlights the ship sizes from many of the most popular sci-fi universes out there, including Star Wars, Star Trek, Babylon 5, Battlestar Galactica, and more than a dozen more. Heck, it even has the Red Dwarf on there.
Head over the ~DirkLoechel's page to see more from this monstrous chart.
[Editor note: Dirk Loechel has expanded on the original done by Dan Carlson.]