Oh, I know there are a lot of XP calculator programs, I used one when I still used RAW experience (the only thing that kept it all at least marginally sane). I just hated the raw number-crunching of it and how CR's and EL's are so imprecise, and I hate having to actually use my laptop to calculate the experience for my game. Moving over to a more story-based system also fosters (IMO) a more roleplaying based game, as it moves the game away from yet more calculations and number crunching.
As for Star Wars, that's actually part of my inspiration to seriously tone down experience. In Star Wars, characters level up very slowly compared to D&D, there are no epic level characters, and across an entire Galaxy characters even in the high teens are rare (with most heroic types being probably under 10th level).
If you used "by the book" experience from the SWRPG for the canonical adventures of the main characters, they all would have gone Epic pretty early on. If you want to become a Jedi Knight, you're not going to get 7 class levels in a year or two, even the ultimate prodigy took 4 years, (Obi-Wan took 12 years in peacetime, for example)
Examples:
Luke Skywalker gets 7 levels over the 4 years of the original trilogy (from Fringer 2 when he first met Ben Kenobi, to Fringer 2/Jedi Guardian 7 at the Battle of Endor, 4 years later). He becomes a Jedi Master (Fringer 2/Jedi Guardian 13/Jedi Master 1) 7 years (and 7 levels) later, this from a "star" character who is getting into huge adventures all the time. Even by the beginning of New Jedi Order, after a quarter century of active adventuring in the middle of the greatest conflict the Galaxy has seen in 25 millennia, he's 18th level. After 900 years, Yoda is 20th level (of course, 20th level characters are so rare that they never bothered with Epic level rules, since only Yoda and Palpatine have ever been officially 20th level, they've never detailed it, but Luke by the end of NJO or the Legacy Era might be 20th Level).
Anakin takes a decade to go from Fringer 1 (Episode I) to Fringer 1/Jedi Guardian 5 (Episode II), and that's with him and Obi-Wan running around the Galaxy having adventures.
Supporting characters like Chewbacca and Lando gain levels even more slowly, but way too slowly to ever be practical for PC's. (Chewbacca levels at a rate of about once a decade).
Thus, I try and time it such that PC's get about 1 level per calendar year, which is very fast compared to all but the main characters of the entire setting, and I do this by using story based XP, and typically staging adventures months or seasons apart (with lots of presumed relatively minor adventures and downtime in between).