Home & DIY tools

Calculate the square footage of rooms, floors, walls or land — rectangles, circles, triangles and L-shapes, added together — with cost per sq ft.

Work out how many cubic yards of concrete or how many 80, 60 or 40 lb bags you need for a slab, footing, column or stairs, with waste and cost.

Find out how many gallons of paint you need for a room or set of walls, accounting for doors, windows, coats, ceiling and paint coverage.

Calculate how many tiles and boxes you need for a floor or wall from the area, tile size and grout gap, with a waste allowance for cuts and breakage.

Calculate cubic yards, bags and weight of mulch, topsoil, gravel, crushed stone, river rock or sand for any area and depth, with bulk vs bagged cost.