HeavyCalc Pro is a yard, feet-inch-fraction, metric heavy construction-math calculator. The heavy construction-math calculator is specifically designed for heavy excavators. It can help you control costs by easily staking out drops, ramps and trenches or calculating percent grade and slope for right angle solutions and diagonals. Use Existing and Proposed functions to quickly make accurate soil-volume estimates. Dedicated functions for area, volume, weight, slopes, shrink and swell, cut/fill, square-ups and more. Cost function for material costing estimates. Work in, convert between any building dimension. Solve weight per volume.