Check this link out:
Jump Drive Planner Tool
Jump drive works "as the crow flies" - a straight line from system 1 to system 2 the above tool will calculate, based on the ship, your skills and the distance the # of lightyears and the fuel required. Cap ships can only jump from and to low sec and 0.0
This is an outdated but informative faq, not written by me:
Carriers FAQ
It may answer other general cap ship questions.