Free taper calculator: enter small/large diameters and length to get taper per inch (TPI), taper per foot (TPF), taper ratio, and angle. Supports metric/imperial; shows formulas, steps & PDF.
Free sand calculator: enter area & depth to get volume (yd³/m³), tons, bags, and cost. Density presets (dry/damp), rectangles/circles, coverage; instant steps & PDF.
Free ramp calculator: enter rise and desired slope to get ramp length, run, angle, and grade. ADA presets (1:12, 1:20) & custom limits. Supports ft/m; instant steps & PDF.
Calculate pipe volume from inner diameter and length. Get capacity in m³, liters, and US gallons (plus per-length). Supports mm/in and ft/m. Shows formula and steps; instant results & PDF.
Free gravel calculator: enter area & depth to get volume (yd³/m³), tons, bags, and cost. Supports rectangles, circles, driveways; density presets; instant steps & PDF.
Calculate elevation grade from rise and run. Enter elevation change and distance to get % grade, slope ratio, and angle (deg/rad). Supports ft/m, km/mi; instant steps & PDF.
Free lumber board foot calculator: enter T×W×L (ft/in/mm/cm/m), pieces & price/BF to get board feet per piece, total BF, and cost. Instant results, PDF, steps.
Free beam deflection calculator for simply supported & cantilever beams. Point, uniform & triangular loads; set E/I or EI; instant results with steps & PDF.
