I agree this is a great app, and the best part is it's FREE! This app will figure total yards needed if you plug in the size of the pieces. It will figure what size framing square to cut if plug in the center shape. It will tell you how many pieces you can cut from a piece of material if you plug in the measurement of remnant and the dimensions of your piece. How great is that for scrap quilting? Nope, they don't pay me. Lol. But it is a great app and you switch to metric with the touch of a button. Check it out, I think you will like it.