Home calculators
Measure once, buy once. These home calculators turn length, width, and a few options into gallons, yards, sheets, squares, or a budget range for US projects.
33 free calculators in this collection. Open any tool for instant results, the formula, and FAQs.
Paint Calculator
Calculate how much paint you need from wall size, doors, windows, and coats. Get paintable area, gallons, liters, and how many cans to buy.
Open calculator →Concrete Calculator
Calculate cubic yards of concrete for slabs, footings, columns, walls, and circular pads. Includes cubic feet, cubic meters, bags, waste, and optional cost.
Open calculator →Gravel Calculator
Estimate gravel cubic yards and tons from length, width, depth, and rock type. Optional cost per ton for driveways, pads, and paths.
Open calculator →Flooring Calculator
Add up to four rooms, then calculate flooring square footage, extra material for waste, boxes if you know coverage per box, and optional cost.
Open calculator →Tile Calculator
Calculate how many tiles you need from room size, tile width and height, grout spacing, and waste. Optional tiles per box and material cost.
Open calculator →Drywall Calculator
Estimate drywall sheets from room length, width, and height. Subtract doors and windows, add a ceiling, and choose 4×8, 4×10, or 4×12 ft sheets.
Open calculator →Fence Calculator
Calculate fence panels, posts, sections, and rails from total length, panel width, post spacing, and gates. Optional estimated panel cost.
Open calculator →Roofing Calculator
Calculate roof area, roofing squares, and shingle bundles from length, width, pitch, number of sections, and waste. 1 roofing square = 100 sq ft.
Open calculator →Siding Calculator
Estimate vinyl or fiber-cement siding square footage and squares from wall length, height, number of walls, doors, windows, and waste.
Open calculator →Topsoil Calculator
Calculate topsoil cubic feet, cubic yards, cubic meters, and approximate tons from bed or lawn length, width, and depth.
Open calculator →Sand Calculator
Estimate sand volume, cubic yards, weight, and tons from length, width, depth, and sand type (play, concrete, masonry, or fill).
Open calculator →Paver Calculator
Calculate patio or driveway pavers from surface size, paver dimensions, joint spacing, and waste. Optional pieces per pallet or box and material cost.
Open calculator →Wallpaper Calculator
Estimate wallpaper rolls from wall length, height, number of walls, roll width and length, and pattern repeat. Includes openings and a waste allowance.
Open calculator →Concrete Bag Calculator
Count 40, 60, or 80 lb concrete mix bags from slab length, width, and thickness. Primary result is bags to buy, with cubic yards if a truck is cheaper.
Open calculator →Dirt Calculator
Estimate fill dirt cubic yards, cubic meters, and tons from length, width, and depth. Choose dry, compacted, wet, or clay fill — not gravel or topsoil.
Open calculator →Moving Truck Size Calculator
Pick a 10, 15, 20, or 26 ft rental truck from home size or cubic feet. Distinct from a moving-cost quote — this is capacity, not dollars.
Open calculator →Water Heater Size Calculator
Size a tank or tankless water heater from household size and simultaneous showers. See recommended gallons, first-hour rating, and tankless GPM.
Open calculator →Pergola Cost Calculator
Estimate pergola cost from size, material, roof style, and DIY vs pro labor. Includes posts, beams, rafters, and hardware.
Open calculator →Fence Cost Calculator
Estimate fence cost per linear foot for wood, vinyl, chain link, aluminum, or composite, including posts, gates, and install.
Open calculator →Concrete Slab Calculator
Calculate cubic yards, 60 lb and 80 lb bags, and cost for a concrete slab from length, width, and thickness.
Open calculator →Gravel Driveway Calculator
Estimate gravel tons, cubic yards, and cost for a driveway or pad from length, width, and depth.
Open calculator →Mulch Calculator
Calculate mulch bags or cubic yards from bed size and depth, then compare bag price vs bulk delivery.
Open calculator →Shed Cost Calculator
Estimate shed cost from size, style, quality, foundation type, and DIY vs pro labor, including a permit allowance on larger floors.
Open calculator →Moving Cost Calculator
Estimate moving cost from home size, distance, packing, and stairs for local hourly moves and long-distance weight-based quotes.
Open calculator →Dumpster Size Calculator
Pick a 10, 15, 20, 30, or 40 yard dumpster from your project type, with rental cost, extra days, and weight cap.
Open calculator →HVAC Size Calculator
Estimate air-conditioner and heat-pump size in BTU and tons from square footage, climate, ceiling height, insulation, sun, and occupancy.
Open calculator →Generator Size Calculator
Size a portable or standby generator in watts and kW from home size, essentials vs whole-home backup, HVAC, well pump, range, and dryer.
Open calculator →Solar Panel Savings Calculator
Estimate solar system size, panel count, net cost after the 30% federal tax credit, payback years, and 25-year savings from your electric bill.
Open calculator →Tree Removal Cost Calculator
Estimate tree removal cost from height, trunk diameter, proximity to structures, access, stump grinding, and storm urgency.
Open calculator →Board Foot Calculator
Calculate board feet for lumber from thickness, width, length, and quantity. Instant board foot calculator with cubic feet and cost.
Open calculator →Roof Pitch Calculator
Convert roof rise and run into pitch (X:12), angle in degrees, slope percent, and rafter length. Free roof pitch calculator for builders and DIYers.
Open calculator →Deck Material Calculator
Estimate decking boards, joists, posts, concrete, screws, and cost from deck length and width. Free deck material calculator for DIY builds.
Open calculator →Square Footage Calculator
Calculate rectangular area in square feet for flooring, paint, and room planning.
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