General Calculators
Useful building math: area, volume, square footage, slope, percentage, and markup.
General calculators cover the everyday math of building, including area, volume, square footage, slope, and percentages. They are quick tools for common measurement problems. Area Calculator.
Area CalculatorCalculate the area of common building shapes including squares, rectangles, triangles, and circles. See the formula for each shape.Volume CalculatorCalculate the volume of common building shapes.Square Footage CalculatorFind the square footage of a room, building, or any shape and estimate project costs by entering the price per square foot.Waste Factor CalculatorAdd a waste or overage percentage to material quantities.Slope CalculatorCalculate slope as a percentage, ratio, or degrees.Percentage CalculatorCalculate percentages, percentage change, and ratios.Markup CalculatorCalculate markup and selling price from cost.