Laura's Boxy Pouch Calculator

So, my friend, Laura, did this thing.  She created a calculator to create any sized zippered boxy pouch you want.  All you have to do is enter some measurements and it will tell you what sized fabric to start with.

Laura's Boxy Pouch Calculator

L = Length of desired pouch
H = Height of desired pouch
W = Width of desired pouch
Box corners = 1/2H - seam allowance

The resultant measurements are for the cut of fabric you'll need to make your pouch.

The box corner cut outs to create the height of the pouch are equal to 1/2H - the seam allowance.  This means that if your pouch height measures 3", you will cut a square from each corner that equals
1.25" (1/2 of 3"=1.5"- 0.25")

For example:  I want a pouch that finishes 7" L x 4" W x 3" H.  I'll sew using a 0.25" seam

allowance.

According to the calculator, I will need to start with fabric measuring L=10.5" x W=14.0".  My box corners will equal 1.25".  The zipper is ALWAYS sewn to the length side of the fabric!


You will need to know how to create a zippered boxy pouch.  There are many tutorials on the web.  This calculator just gives you measurements to make the pouch to your exact specifications.  Creating the pouch from there is the same no matter what size you make.