Someone posted this link to a binding chart, not sure if this is what you are asking. The seam allowance would be your finished width you want your binding. So if you want a 1" finished binding, see the chart to cut your strips the right width and sew on the front with a 1" seam allowance...not sure if I have helped...
http://quiltbug.com/Articles/binding-calculator.htm
this would be the one...sorry
http://quiltersden.ca/wp-content/upl...t-Binding2.pdf