I was going crazy trying to figure out just how many darn M&Ms to get to fill our favor boxes! I knew how many I wanted per box but trying to calculate that out to the number of ounces and pounds to order was making me nuts. I found this website today that has a calculator for how much you will need of different types of candy (M&Ms, jordan almonds, jelly beans, kisses, champagne candies, melty mints, pillow mints) to fill a 2x2 square favor box. What a relief! So if you're in the same boat (or box), this site may at least give you a place to start. http://www.favorideas.com/wedding-blog/the-2-by-2-favor-box/