If you are an AOPA member (you are, aren't you), their flight planner
does what you want.

C. Osbourne wrote:
Anyone know where I could get a downloadable, or freeware
program to assist in filling out a cross country navigation
form? Yes, I know we have to do that manually, but in the
learning process it'd be a great help to have a way to check
our answers for saneness.

If you can point me in the direction of either a downloadable
or web-based program to generate all the data, it'd be a big
help! I've seen duats, but I'm looking for something else.

Thanks for answering here.