This may be a really simple question and there is a nice, neat answer ... but I am going to ask it anyway.

Often while sewing you need to make up a panel, rectangle, triangle etc. .... when you try and get a finished panel, it can be a chore to figure out the starting size of fabric required.

Is there a calculator you can just plug in the hem you are using, finished size and shape you want and it will calculate the starting size?




Brian