I have this chart printed and hanging near my cutting table!
Originally Posted by
huskyquilter
If you want 1.5" unfinished squares you would cut 2 3/8" squares to make the hsts. The diagonal 1/4" seams take a bigger bite out of the size. Generally, if I wanted 1.5" unfinished hsts, I would start with squares at 2 3/4", make my hsts, then square up and trim down to size. I know it's a little more waste, but it's worth it when they mostly turn out okay. Here's a link to a chart and tutorial that might help you with those hsts.
http://www.blossomheartquilts.com/20...maths-formula/