What should I put as my GPA for a pass/fail class? I'm homeschooled, and I'm currently working on my high school transcript to apply to colleges. The form provided asks for a grade from A+ to F for each class. I don't know what to put as my grade for Driver's Education, a half-credit elective class with no definitive grade. On an old transcript, it simply says "PASS." 

How would I convert this to GPA? 4.0? Something lower? Should I ask each college I apply to and send them different transcripts? I'm using the form instead of simply creating my own because one college requires that I use the form, whereas the rest don't appear to care.
Pass isn't a letter grade at all.  Don't enter anything from the A-F scale; they are all inaccurate.  Check if "P" or "S" (for Satisfactory) are possible options.

Otherwise, reread the instructions for the application.  It may be that they don't want you to include "non-academic" classes like driver education at all.

If you don't find clarification, then contact the school that requires the form and ask them what you should do.

If you are computing your GPA by hand, then pass-fail classes are not included.  Disregard the class completely for the purposes of GPA; leave it out of both the numerator and the denominator.