Originally Posted by my3furryfriends
Example: Whenever I see a (free) pattern online I really like, but I want the instructions shown as a 12" block instead of say, what it shows only in an 8", what is the best and easiest way of getting your pieces to measure out--once sewn together-- to 12" (or 12-1/2, incl. seams)?
And, yes, I am very much mathematically challenged, so a very simple suggestion or method would be welcomed from all of you out there. Thanks bunch! :-(
To get a 12" finished block from an 8" finished block take every pattern piece measurement, subtract the ½" seam allowance, multiply the result by 1½, then add back the ½" seam allowance. (as an example, a piece with a pattern measurement of 2½"x3½" would become 3½"x5" )
To find out what to multiply by for other size changes, divide the finished size you want by the finished size of the pattern (for example, 12 divided by 8 is 1½).