Construction Calculators

Free cubic yard calculator for concrete, gravel, soil and mulch. Converts length, width and depth into cubic yards, cubic feet, tons, bag counts and coverage across multiple areas and shapes.

Free stair calculator for riser height, tread depth, total run, stringer length and stair angle, with live IRC code checks and a printable stringer mark-out list.

Free roof pitch calculator: convert pitch to degrees, percent and slope factor, with rafter length, roof area and a full pitch chart.

Free asphalt calculator for driveways and parking lots: tonnage, cubic yards and cost.