Home & Construction Calculators
Materials, paint, area, and volume.
17 free calculators in this category — all run in your browser.
Concrete CalculatorHow much concrete (and how many bags) a slab, pad, or footing needs.Flooring CalculatorSquare footage, boxes to buy, and estimated cost for a flooring project.Paint CalculatorGallons of paint for a room's walls, minus doors and windows, per number of coats.Area CalculatorArea and perimeter for rectangles, circles, triangles, and trapezoids.Volume CalculatorVolume of boxes, cylinders, spheres, and cones with unit conversions.Mulch CalculatorEstimate cubic yards, bag count, and material cost for a garden bed.Gravel CalculatorEstimate landscaping gravel volume, weight, and optional cost.Tile CalculatorCalculate tile count and boxes, including an allowance for cuts and waste.Roofing CalculatorEstimate roof surface, roofing squares, bundles, and an optional material cost.Square Footage CalculatorAdd room areas together and convert the total to square meters and yards.Cubic Yard CalculatorConvert rectangular project dimensions into cubic feet, yards, and liters.Board Foot CalculatorCalculate board feet and lumber volume for a quantity of boards.Stair CalculatorEstimate riser count, tread count, horizontal run, and stringer length.Deck CalculatorEstimate deck-board rows, linear feet, joist count, and screws.Fence CalculatorEstimate fence length, post count, panel spacing, and picket quantity.Wall CalculatorEstimate masonry block quantity from wall area, openings, block dimensions, and waste.Room CalculatorCalculate room floor area, perimeter, wall area, ceiling area, and volume.