Calculapedia
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How much do you need?

Smart calculators for home and building projects. Get the exact amount of material — and what it’ll cost — in seconds.

🧱
Concrete Calculator
Cubic yards & bags for slabs, footings & patios
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🌿
Mulch Calculator
Bags or cubic yards for any garden bed
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⛏️
Gravel Calculator
Tons & cubic yards for driveways & paths
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🎨
Paint Calculator
Gallons needed for any room or wall
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◻️
Tile Calculator
Tiles & boxes for floors & walls
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🔲
Drywall Calculator
Sheets needed for walls & ceilings
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🌱
Sod Calculator
Rolls & pallets for a new lawn
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🪴
Topsoil Calculator
Cubic yards & bags for beds & lawns
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🚧
Fence Calculator
Panels & posts for any fence line
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🪵
Deck Board Calculator
Boards needed for any deck size
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🪟
Flooring Calculator
Boxes of laminate, vinyl or hardwood
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🧶
Carpet Calculator
Square yards for any room
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🧱
Paver Calculator
Pavers needed for patios & walkways
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🏖️
Sand Calculator
Tons & cubic yards of sand
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🛣️
Asphalt Calculator
Tons of asphalt for driveways
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🏠
Roofing Calculator
Squares & shingle bundles
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🧱
Brick Calculator
Bricks needed for any wall
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🟫
Block Calculator
Cinder / concrete blocks for a wall
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🪣
Deck Stain Calculator
Gallons of stain for a deck
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🌾
Grass Seed Calculator
Pounds of seed for a lawn
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🟧
Plywood Calculator
Sheets for subfloor & sheathing
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📏
Baseboard Calculator
Linear feet of trim & molding
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🏊
Pool Volume Calculator
Gallons of water in a pool
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🚜
Excavation Calculator
Cubic yards of dirt to dig or haul
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🖼️
Wallpaper Calculator
Rolls needed for any room
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🧊
Insulation Calculator
Bags or batts to cover an area
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👑
Crown Molding Calculator
Linear feet of crown molding
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🔨
Wall Stud Calculator
Studs & plates for framing a wall
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🪣
Mortar Calculator
Bags of mortar for brick or block
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🔩
Rebar Calculator
Rebar for a slab grid
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🪨
Retaining Wall Calculator
Blocks for a retaining wall
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♻️
Compost Calculator
Cubic yards & bags of compost
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🥕
Raised Bed Soil Calculator
Soil to fill a raised garden bed
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🧪
Fertilizer Calculator
Bags of fertilizer for a lawn
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🛢️
Driveway Sealer Calculator
Buckets of sealer for a driveway
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🌧️
Gutter Calculator
Gutter & downspouts for a roof
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🪜
Stair Calculator
Risers & treads for a staircase
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🏗️
Baluster Calculator
Balusters / spindles for a railing
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River Rock Calculator
Tons of decorative landscape rock
Calculate →
📃
Underlayment Calculator
Rolls of floor underlayment
Calculate →
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Estimate materials the easy way

Every Calculapedia tool uses the same simple idea: tell it the size of your project, and it tells you exactly how much material to buy — rounded up with a sensible waste allowance so you don’t make a second trip to the store. Each calculator also shows an estimated cost so you can budget before you start.

Pick a calculator above to get started. They work instantly as you type, on your phone or computer.