Tools
Home project calculators
Estimate materials, sizing and payback before you call a contractor. Every calculator shows its formula so you can check the math.
Verified August 2026
46 calculators
Roof Cost CalculatorEstimate roof replacement cost by house size, roof pitch and material. Get a price range per square,Roof Square CalculatorConvert roof dimensions into roofing squares, shingle bundles and total area, including pitch and waRoofing Material CalculatorCalculate shingles, underlayment, ridge cap, drip edge and nails for a roof replacement, with waste Fence Cost CalculatorEstimate fence installation cost by linear feet, height, material and gates. See price per linear foFence Post CalculatorCalculate how many fence posts, panels, rails and bags of concrete you need for a fence run of any lConcrete CalculatorCalculate cubic yards of concrete for a slab, driveway, patio or footing, plus the number of 60 lb oPaint CalculatorCalculate gallons of paint needed for interior or exterior walls by room dimensions, coats, doors anFlooring CalculatorCalculate flooring square footage, boxes needed with waste, and installed cost for LVP, tile, hardwoTile CalculatorCalculate how many tiles and boxes you need, plus thinset and grout quantities, for a floor or wall Deck Material CalculatorCalculate deck boards, joists, footings and fasteners for any deck size, with an installed cost estiPaver CalculatorCalculate how many pavers you need plus base rock, bedding sand and polymeric sand for a patio, drivAC Size CalculatorCalculate the AC tonnage and BTU capacity your home needs based on square footage, climate, insulatiBTU CalculatorCalculate the BTU capacity you need for a room air conditioner or mini split, adjusted for sun exposPool Cost CalculatorEstimate in-ground pool installation cost by size, construction type, decking, screen enclosure and Water Heater Cost CalculatorEstimate water heater replacement cost by type, capacity and fuel, including installation, permit anSolar Payback CalculatorCalculate solar panel payback period, 25-year savings and system size from your electric bill and loGenerator Size CalculatorCalculate the standby generator size your home needs based on AC tonnage, water heater, well pump anMulch CalculatorCalculate how many bags or cubic yards of mulch you need for a bed of any size and depth.Drywall CalculatorCalculate drywall sheets, joint compound, tape and screws for any room or wall area.Driveway Cost CalculatorEstimate driveway replacement cost by square footage and material, including demolition, base prep aSquare Footage CalculatorCalculate square footage, square yards and perimeter from room dimensions, with waste allowance for AC Replacement Cost CalculatorEstimate central air conditioner replacement cost by system size, efficiency rating and removal of tFurnace Replacement Cost CalculatorEstimate gas or electric furnace replacement cost by heating capacity, AFUE efficiency, venting chanHeat Pump Cost CalculatorEstimate heat pump installation cost by size and efficiency, subtract the federal tax credit, and seMini Split Cost CalculatorEstimate ductless mini split cost by number of zones, total BTU capacity and installation difficultyDuctwork Replacement Cost CalculatorEstimate the cost to replace home ductwork by conditioned square footage, number of supply runs and Window Replacement Cost CalculatorEstimate window replacement cost by window count, frame material, glass package and whether the openImpact Window Cost CalculatorEstimate hurricane impact window cost by opening count and size, including large-missile rating, perEntry Door Cost CalculatorEstimate entry door replacement cost by door material, sidelights, hardware and whether the frame isGarage Door Cost CalculatorEstimate garage door replacement cost by door size, material, insulation R-value and whether a new oHardwood Floor Cost CalculatorEstimate hardwood flooring cost by area, wood species, solid vs engineered, removal of old flooring Floor Refinishing Cost CalculatorEstimate hardwood floor refinishing cost by area, floor condition, stain choice and finish type, incLaminate Flooring Cost CalculatorEstimate laminate flooring cost by area, plank grade, underlayment and installation labor, with wastVinyl Plank Flooring Cost CalculatorEstimate luxury vinyl plank (LVP) flooring cost by area, plank type, subfloor prep and installation,Carpet Cost CalculatorEstimate carpet installation cost by area, carpet grade, padding and stairs, with pricing shown per Gutter Cost CalculatorEstimate seamless gutter cost by linear feet, material, house height and number of downspouts, incluGutter Guard Cost CalculatorEstimate gutter guard cost by linear feet and guard type, and compare professional installation agaiRoof Coating Cost CalculatorEstimate roof coating cost by roof area, coating type and number of coats, including primer and mateTankless Water Heater Cost CalculatorEstimate tankless water heater installation cost by fuel type, flow rate and the gas line, venting oWater Softener Sizing CalculatorFind the right water softener grain capacity from household size, water hardness and iron content, wWell Pump Sizing CalculatorSize a submersible well pump from well depth, required flow rate and elevation to the highest fixturPool Resurfacing Cost CalculatorEstimate pool resurfacing cost by pool surface area, finish type, tile band replacement and drainingPool Deck Cost CalculatorEstimate pool deck cost by deck square footage, surface material, demolition of the existing deck anRetaining Wall Cost CalculatorEstimate retaining wall cost by wall length, height and material, including base preparation, drainaSod Cost CalculatorEstimate sod cost by lawn area and grass type, including pallets required, old lawn removal, soil prSprinkler Zone CalculatorWork out how many irrigation zones and heads your yard needs from available water flow, head type an