Your Paper Math Resource We get it...math is tough. Use our calculators below to simplify your calculations and conversions. LENGTH & WEIGHT CALCULATORS Grammage Calculator Ream Weight Calculator Pages Per Inch Calculator MSI / MSF Calculator Equivalent Weight Calculator Linear Footage Calculator Basis Weight Calculator M-Weight Weight of a roll of paper calculator UNITS CONVERSIONS Mils / Micron converter Length Conversion Calculator Area Conversion Calculator Typographic unit converter PRICE ESTIMATES Price Per MSI/MSF Price Per Thousand Sheets MSF Price conversion to linear foot