Free build & material calculators

Instant, no-nonsense calculators that tell you exactly how much material your project needs — or what it should cost. Free, no sign-up, works on your phone.

• Concrete calculator Cubic yards and 60/80 lb bags for slabs, footings, and pads.
• Gravel calculator Cubic yards and tons for driveways, paths, and landscaping.
• Sand calculator Cubic yards, tons, and 50 lb bags for paver bases and sandboxes.
• Mulch calculator Cubic yards and 2/3 cu ft bags for garden beds.
• Topsoil calculator Cubic yards and tons for lawns and raised beds.
• Sod calculator Square footage and pallets of sod for a lawn.
• Paint calculator Gallons and cans for a room, minus doors and windows.
• Tile calculator Tiles and boxes for a floor or wall, with waste allowance.
• Flooring calculator Boxes of laminate, vinyl, or hardwood for a room.
• Drywall calculator Sheets of drywall for walls and ceilings.
• Fence cost calculator Estimated installed cost by length and material.
• Deck cost calculator Estimated installed cost by deck size and material.
• Stair calculator Steps, riser height, run, and stringer length from the total rise.
• Wallpaper calculator Rolls of wallpaper for a room, by the strip method.
• Roof pitch calculator Pitch, angle, and rafter length from rise and run.
• Brick calculator Bricks for a wall, including the mortar joint and waste.
• Concrete block calculator Concrete blocks (CMUs) for a wall, with mortar joint and waste.
• Rebar calculator Linear feet and bars of rebar for a slab grid.
• Asphalt calculator Tons of hot-mix asphalt for driveways and lots.
• Insulation calculator Bags of insulation for a wall or ceiling area.
• Carpet calculator Square yards and square feet of carpet for a room.
• Stucco calculator Bags of stucco or plaster for a wall.
• Baseboard calculator Linear feet and boards of baseboard trim for a room.
• Concrete column calculator Concrete for round tubes, piers, and Sonotubes.
• Paver calculator Pavers for a patio or walkway, with a waste allowance.
• Retaining wall calculator Blocks for a segmental retaining wall, with courses.
• Fence calculator Posts, rails, and pickets for a wood or picket fence.
• Deck calculator Deck boards and joists for a deck, plus linear feet.

Guides

Practical how-to and cost guides that walk through a project and link to the right calculator.

• How much gravel do I need for a driveway?
• How many bags of concrete for a slab?
• How much does it cost to install a fence?
• How much does it cost to build a deck?

Last updated June 2026.