hey, I used bikely to track my route today and i did 22.3 miles and had an elevation gain/loss of 1125 feet. I'm trying to play around with these numbers so that I can compare energy expenditure on different routes and try to get a baseline now that I'm back in a more "training" mindset (aka its warm out and I'll be taking real rides all the time). I used bikely.com to get my distance/elevation, short of buying a cycling computer and/or counting my cadence, is there any way I can calculate this (with my times at various checkpoints) to figure out what my speed would be on flat ground? I'm looking either for the shell of a formula (I can do the math myself) or a web page that'll do it for me.

google wasnt much help, and I don't know how to even begin to search that on here and get any valid results

thanks in advance!