I built Fraction Calculator: Inch & CM to solve a real workshop headache: mixed measurements. Most tools are just digital keypads, but this app provides a dynamic visual ruler to help you locate fractions on a real tape measure instantly. Calculate and convert inches, decimals, and metric (CM/MM) in a single line with up to 1/64" precision. Whether you’re a pro contractor or a DIYer, it eliminates math errors and reduces material waste. Pro-grade math made intuitive.