Blue = Feet Green = Inches & fractions Tools include: - Triangle calculator (calculate angles, diagonals, squares) - Unit converter (imperial to metric) - Scale (scale plan dimensions) - Pipe fitting (calculate travel, run, required elbow angle, equal spread offset) - Circles / Columns (calculate area, volume from radius or diameter + height) - Advanced circles (Calculate chords, arcs, cross sectional areas) - Stair stringers (Cut guide / calculator for stair stringers) - Board Feet (Calculate