I posted this same thread in the Road Bike forum, realized it belongs here... Hope you guys don't get pissed of.
Just wanted to see if you guys could tell from this picture if my saddle height is correct. If any of you have a program that measures the knee angle, I would really appreciate if you did that for me. My inseam is around 86 cm, maybe a bit more, my saddle height is now at 75.2 cm. According to the lemond formula it should be at 76 cm or more.

How does it feel set up like that? I'm serious. How does it feel? Try it higher, try it lower and go by how it feels. I have my saddles set at 30" above the BB per some formula I read about years ago,Some days that feels too high, so Iower it a skosh and run it like that for a couple of weeks. Especially on the road racer after a whole winter of nothing but commuting. Then I raise it gradually as I get more limber. Formulas are fine but how you feel trumps what the calculations predict.

Check out How to get your seat height right - BikeRadar for a variety of ways to set your saddle height. The bottom line, if there is one, is that there is no exact correct height. Too high is fairly easy; you'll have to rock back and forth to get to the pedal. Too low? Watch some 14 year old kid on a BMX bike. There is no too low but on a road bike going lower and lower decreases your efficiency but a somewhat lower saddle puts you a bit more upright so experienced fitters will tend to set old people and newbies a bit lower than they would a racer. Going a bit lower also moves you forward which can be a help or hindrance depending on your bike fit. You clearly are in the ball park so your height is absolutely a reasonable one that you should feel free to use for quite a while, raising or lowering it a bit here or there as you wish but not a lot in either direction. Saddle height for a non racer isn't a really critical thing within a cm plus or minus of OK; certainly not as critical as fore-aft position.

My knees tell me within a half hour if my seat is too high or low.

quick test .. heel of your bare-foot, on pedal center.. knee straight.

With ball of your foot on the pedal it should be adequate..

move the seat up as the sole of the chosen shoe, thickness, increases.