Construction & material calculators
Pick your material and get the amount, the waste to add on top, and a cost estimate. Every tool runs in your browser and works one-handed on a phone.
Concrete Block Calculator
Block count and mortar for any wall.
Open calculatorRebar Calculator
Bar count and total length for your slab grid.
Open calculatorGravel Calculator
Yards, tons, and bags for driveways, paths, and drainage.
Open calculatorMulch Calculator
Bags or yards to cover beds at the right depth.
Open calculatorSand Calculator
Yards, tons, and bags for any sand job.
Open calculatorTopsoil Calculator
How much soil to fill or top-dress a bed or yard.
Open calculatorAcreage Calculator
Acres, square feet, and hectares from your lot size.
Open calculatorSquare Feet to Acres Calculator
Convert between square feet, acres, hectares, and more.
Open calculatorPrice Per Acre Calculator
Total land cost, plus price per square foot and hectare.
Open calculatorRoof Pitch Calculator
Pitch, angle, and rafter length from rise and run.
Open calculatorStair Stringer Calculator
Risers, treads, and stringer length to code.
Open calculatorDrywall Calculator
Sheets, screws, and mud for walls and ceilings.
Open calculatorAsphalt Calculator
Tonnage for driveways and lots at any depth.
Open calculator