These calculators give quick material estimates for common home and outdoor projects. Always add a waste allowance, typically 5 to 10 percent, and confirm final quantities with your supplier before purchasing. The Area Calculator is a useful starting point for the Flooring, Paint, and Concrete calculators, which all need a base area or volume measurement.
Calculate the area of squares, rectangles, circles, and other shapes.
Flooring CalculatorEstimate how much flooring material you need for any room.
Paint CalculatorCalculate how much paint you need based on wall area and coats.
Concrete CalculatorCalculate concrete volume needed for slabs, footings, and columns.
Roofing Material CalculatorEstimate shingles, underlayment, and materials needed for a roof.
Fence CalculatorCalculate posts, panels, and materials needed for a fence project.
Drywall CalculatorEstimate drywall sheets, joint compound, and tape for a room.
Mulch CalculatorCalculate how much mulch you need by area and desired depth.
Related Categories
Other tools contractors and DIYers use alongside construction calculators.