Free tools
All Calculators
Every HowMuchBuild tool shows its work: full material takeoffs, waste allowances, cost estimates, and step-by-step arithmetic — not one-field widgets. Thirteen calculators, all free, no sign-up.
Concrete Bags Calculator
How many bags of concrete do I need? Slab, wall, footing, column & fence-post modes with post displacement.
Open calculatorConcrete Calculator
Cubic yards, ready-mix quantities, and bag equivalents for any pour.
Open calculatorDeck Calculator
Boards, joists, posts, footings, screws & railing from your deck dimensions.
Open calculatorFence Calculator
Posts, pickets, rails, concrete & gates from length, height, and style.
Open calculatorMulch Calculator
Beds, circles & triangles — cubic yards or bags, with depth in inches.
Open calculatorPaint Calculator
Gallons for rooms, walls, and exteriors — doors & windows subtracted, coats compared.
Open calculatorDrywall Calculator
Sheets, screws, joint compound & tape for walls and ceilings.
Open calculatorPaver Calculator
Paver counts, base gravel, bedding sand & polymeric sand for patios and walkways.
Open calculatorSod Calculator
Sod rolls and pallets to cover your lawn area, with waste allowance.
Open calculatorTopsoil Calculator
Cubic yards and bags of topsoil for beds, lawns, and grading.
Open calculatorGravel Calculator
How much gravel do I need — tons and cubic yards for driveways and beds.
Open calculatorSand Calculator
Sand by the ton or cubic yard for bases, bedding, and fill.
Open calculatorTile Calculator
How many tiles do I need — tiles, waste, and boxes for floors.
Open calculator