Ksp Transfer Window. I wrapped my brain around some orbital maths and alexmun provided some of the important code to help me show data visualisations of delta v required. Level 1 3 yr.

Start with a normal launch from kerbin by making a gravity turn at. The image is minimalist just to drive home the point that you dont need a bunch of complicated calculations to line up an interplanetary transfer and also because i spent 6m34s making this in ms paint. Mechjeb can do this too.
And also set up a transfer manevuer from orbit for you.
Triggerau launchwindowplanner forum thread. Hi i have only just installed this mod together with transfer window planner. After plotting a transfer use wsad keys to move your selection. Using it you can select your planet of origin and planet of destination and it will present you with details about the required delta v to travel from origin to destination.