Construction Calculators
Construction Calculators
Browse construction calculators and related tools on Calculator 360.
Square Footage Calculator
Multiply rectangular length by width to estimate square footage. Enter feet, inches, or meters; the result also shows square meters. This geometric calculation does not use any legal floor-area definition.
Topsoil Calculator
Estimate topsoil for a bed or planter from its shape and depth. View cubic feet, cubic yards, and metric volume. Add your own bag volume to estimate how many bags to buy.
Concrete Calculator
Estimate slab, rectangular, or cylindrical concrete volume from dimensions in feet and inches. View cubic feet and cubic yards; a bag count needs the actual mixed yield printed on your product.
Gravel Calculator
Estimate gravel or sand volume from a rectangular or circular area and depth. Weight depends on the density used; a material-specific reference is only indicative until replaced by your supplier data.
Roof Pitch Calculator
Convert roof rise and run, angle, and slope percentage with simple geometry. There is no separate US x:12 pitch field; enter the rise and horizontal run directly. This tool does not check a roof against structural or roofing requirements.
Paint Calculator
Estimate paint from net area, coats, and the coverage value on your paint label. Enter feet or square feet and read the result in US liquid gallons.
Stair Calculator
Explore whole-step stair geometries within the riser and tread ranges you enter. The displayed selection uses only those ranges. This geometric tool does not check building code requirements.
Pool Volume Calculator
Find geometric volume for a rectangle, circle, ellipse, or a user-defined freeform factor. Results include US liquid gallons; filling time uses your stated flow rate.
Tile Calculator
Estimate whole tiles and packages from your area, tile size, joints, and waste allowance.
Wallpaper Calculator
Estimate wallpaper strips and rolls from your walls, roll dimensions, and pattern repeat.
Brick Calculator
Estimate bricks from entered wall, brick, and mortar-joint dimensions.
Flooring Calculator
Estimate flooring area, pieces, and whole packages using the coverage you enter.
Fence Calculator
Estimate fence length, panels or bays, and posts using your chosen spacing.
Mortar Calculator
Estimate mortar volume from area and thickness; enter product yield to estimate bags.
Drywall Calculator
Estimate whole drywall sheets from your wall and sheet dimensions.
Insulation R Value Calculator
Calculate insulation R-value or convert between US R-value and SI RSI.
Deck Calculator
Estimate deck boards and framing counts from dimensions and spacing you enter.
Choose the right calculator
Estimate rectangular square footage and topsoil volume from the dimensions you enter.
Square Footage Calculator
Multiply rectangular length by width to estimate square footage. Enter feet, inches, or meters; the result also shows square meters. This geometric calculation does not use any legal floor-area definition.
Topsoil Calculator
Estimate topsoil for a bed or planter from its shape and depth. View cubic feet, cubic yards, and metric volume. Add your own bag volume to estimate how many bags to buy.
Concrete Calculator
Estimate slab, rectangular, or cylindrical concrete volume from dimensions in feet and inches. View cubic feet and cubic yards; a bag count needs the actual mixed yield printed on your product.
Gravel Calculator
Estimate gravel or sand volume from a rectangular or circular area and depth. Weight depends on the density used; a material-specific reference is only indicative until replaced by your supplier data.
Roof Pitch Calculator
Convert roof rise and run, angle, and slope percentage with simple geometry. There is no separate US x:12 pitch field; enter the rise and horizontal run directly. This tool does not check a roof against structural or roofing requirements.
Paint Calculator
Estimate paint from net area, coats, and the coverage value on your paint label. Enter feet or square feet and read the result in US liquid gallons.
Stair Calculator
Explore whole-step stair geometries within the riser and tread ranges you enter. The displayed selection uses only those ranges. This geometric tool does not check building code requirements.
Pool Volume Calculator
Find geometric volume for a rectangle, circle, ellipse, or a user-defined freeform factor. Results include US liquid gallons; filling time uses your stated flow rate.
Tile Calculator
Estimate whole tiles and packages from your area, tile size, joints, and waste allowance.
Wallpaper Calculator
Estimate wallpaper strips and rolls from your walls, roll dimensions, and pattern repeat.
Brick Calculator
Estimate bricks from entered wall, brick, and mortar-joint dimensions.
Flooring Calculator
Estimate flooring area, pieces, and whole packages using the coverage you enter.
Fence Calculator
Estimate fence length, panels or bays, and posts using your chosen spacing.
Mortar Calculator
Estimate mortar volume from area and thickness; enter product yield to estimate bags.
Drywall Calculator
Estimate whole drywall sheets from your wall and sheet dimensions.
Insulation R Value Calculator
Calculate insulation R-value or convert between US R-value and SI RSI.
Deck Calculator
Estimate deck boards and framing counts from dimensions and spacing you enter.
Frequently asked questions
Which tools are available?
Only the calculators listed on this page are available in English.
Do I need an account?
No. The available tools work without an account.