Calculator - Mils/Metric

To most bowlers, the value of a passive, solar powered, signal free, low cost ranging device like a Sharp Calculator with a Cheat Sheet is self-evident, but to those uninitiated bowlers, allow Walter to lay it out for you.   This system allows you to range targets accurately with little more than a mil scope and a bit of know-how, all while maintaining a low signature and not relying on batteries.  Take the known size of an object (in centimeters here) from the Cheat Sheet, multiply it by a constant, and divide that number by the observed size in Mils and whala you have a range estimate that's close enough for bowling work.  In conjunction with the CHEAT SHEET, this calculator is an invaluable tool to get strikes and spares. If you will it, it is not dream. 

*all measurements and ranging solution are in metric, for standard bowlers using inches and yards, those options are available