Took the time to get some accurate measurements of my body today. And it seems like I need a 19" frame.

Your Measurements (in cm)
Inseam:87
Trunk:65
Forearm:35
Arm:69
Thigh:60
Lower Leg:57
Sternal Notch: 145
Total Body Height: 176

http://www.competitivecyclist.com/

here is a website as well...

Here is more food for thought when determining your frame size.  Setting the proper seat height from Bike Radar:

http://www.bikeradar.com/gear/article/how-to-get-your-seat-height-right-14608/

Quote from: JohnnyNT on January 06, 2015, 01:16:11 PM
Try the spreadsheet, works like a charm: http://weightweenies.starbike.com/forum/viewtopic.php?f=8&t=51071

Since the spreadsheet I cited before is great if you already own a bike, but has little value if you are looking for one, I made an additional file. You insert the frame dimensions given by manufacturer (red) and adjust stem, saddle, spacers (yellow) so that you get green values as close as possible to the ones proposed by Biomech spreadsheet (cited one).

Hope it helps: https://www.dropbox.com/s/clwicdvvokd1xg6/Bikegeofit.xlsx?dl=0


Edit: Updated to take into account forks of different rake and length from the one specified by frame manufacturer and their influence on the angles.