My Excel calculator for Inner Diameter (ID), Gauge (GA), and Aspect Ratio (AR). I use this every time I'm making a new piece. I created this calculator because I needed a way to ensure I used the right ring size and wire gauge for beautiful-looking chain. I hope you find it useful, too, as you work on your own projects.
Download/open the Excel Ring Calculator (file name: RingCalculator1.xls, hosted at WordPress.com) (590 downloads as of 10/15/2013)
The AR is the most important number to chainmaille. With the right AR, your pieces won't be too loose or too tight. If the AR is too low, you might not be able to fit all the rings you need or the