Free home improvement calculators
Turn your measurements into a shopping list. Fast, free, and built for your phone in the store aisle.
Concrete & hardscape
- Concrete CalculatorCubic yards and bags for slabs, footings and post holes.
- Concrete Steps CalculatorCubic yards or bags of concrete for solid steps and a landing.
- Rebar CalculatorBars, sticks and weight of rebar for a slab grid.
- Paver CalculatorPavers, base gravel and bedding sand for patios and walkways.
- Gravel CalculatorCubic yards and tons of gravel, crushed stone, sand or river rock.
- Asphalt CalculatorTons of asphalt for a driveway, path or patch, by thickness.
- Retaining Wall CalculatorWall blocks, cap stones and gravel for a block retaining wall.
- Brick CalculatorBricks and bags of mortar for a wall, veneer or planter.
Walls & paint
- Paint CalculatorGallons of paint for walls and ceilings, by room size.
- Drywall CalculatorSheets of drywall plus screws, mud and tape for a room.
- Wallpaper CalculatorRolls of wallpaper for a room, allowing for pattern repeat.
- Insulation CalculatorDepth and bags of batts or blown-in insulation for attics and walls.
Floors & rooms
- Flooring CalculatorSquare feet and boxes of laminate, vinyl plank, hardwood or tile.
- Tile CalculatorTiles, boxes and grout for floors, walls and backsplashes.
- Carpet CalculatorSquare yards of carpet and pad for a room, by roll width.
- Baseboard CalculatorLinear feet and pieces of baseboard, quarter round or crown.
- Square Footage CalculatorArea of rooms, yards and odd shapes in sq ft, sq yd and m².
Yard & garden
- Deck CalculatorDeck boards, joists and screws for a rectangular deck.
- Fence CalculatorPosts, rails, pickets or panels and concrete for a new fence.
- Mulch CalculatorCubic yards or bags of mulch, topsoil and compost for beds.
- Topsoil CalculatorYards, tons or bags of topsoil for lawns, beds and fill.
- Sod CalculatorPallets, rolls or slabs of sod for a new lawn.
Roof, siding & more
- Roofing CalculatorRoof area, squares and bundles of shingles from your footprint and pitch.
- Siding CalculatorSquares, boxes or planks of siding for a house or shed.
- Stair CalculatorNumber of steps, riser height, tread depth and stringer length.
- AC BTU CalculatorWhat size air conditioner (BTU) a room needs.
Latest guides
- How Much Insulation Do I Need? Attic, Shed and Wall ChartsHow much insulation for an attic, a 10x12 or 12x16 shed, or 2x4 and 2x6 walls: R-values, depth for blown-in insulation, batt counts and how to top up old insulation.
- How Many Tons of Asphalt Do I Need? Driveway ChartTons of asphalt for common driveway sizes at 2, 3 and 4 inches thick, how thick to go, what a driveway costs, and a quick rule for any area.
- How Much Baseboard Do I Need? Linear Feet by Room SizeHow to measure linear feet of baseboard, how many 8, 12 or 16 ft pieces common rooms need, corner and joint cuts, nailing, and typical cost.
- How Much Carpet Do I Need? Square Yards by Room SizeSquare yards of carpet and pad for 10x10, 12x12, 12x15 and other rooms, carpet for stairs, typical costs, and how roll width changes the order.
- How Much Concrete Do I Need for Steps? Chart by Number of StepsCubic yards and 80 lb bags of concrete for 2 to 6 solid steps at 3 to 6 ft wide, with and without a landing, standard step sizes, and typical cost.