MEASURE MASTER PRO - 4020: Get professional results every time with this feetinch- fraction and metric dimensional calculator. This handy, easy-to-use tool for projects converts between dimensional formats including feet-inchfractions, decimal feet-inch-fractions, yards, meters, centimeters, and millimeters, as well as areas and volumes. Built-in functions make for faster, more accurate material estimates. Quickly solve circumference, circle area, and arcs. Dedicated length, width, and height keys provide fast answers for area, volume, square-up, and perimeter. Find weight, weight-per-volume, and more. Includes protective hard slide cover, easy-to-follow pocket reference guides in English and Spanish, long-life batteries, and a full one-year limited warranty.