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Home improvement calculators

Plan the work.
Know the quantities.

A roofing budget begins with the roof area. Concrete needs an accurate volume. Paint and flooring orders depend on coverage and waste. Calculate those quantities first, then apply prices from your own quotes.

Popular:Roof replacementConcrete slabsInterior paintingFlooring installation
Adjustable measurementsItemized cost breakdownsVisible assumptions
Concrete slab calculation

From dimensions to cubic yards.

Change the length, width or slab thickness to recalculate the concrete order.

Project measurements

01 / INPUTS

Your estimate

02 / RESULTS
Calculated quantity—

Concrete slab calculator ↗
Project calculators

Start with the work you are pricing.

Each calculator uses its own measurement model. Cost estimates remain adjustable so material and labor figures can reflect the actual project.

All calculators ↗
Roofing & ExteriorRoof Replacement Cost CalculatorEstimate roof surface, material order quantities and replacement costs from measurements and itemized rates.
Concrete & FoundationsConcrete Slab Cost CalculatorConvert slab dimensions into cubic yards and estimate material and installation costs using quoted prices.
Painting & FinishesInterior Painting Cost CalculatorCalculate paint gallons for a rectangular room with adjustable openings, coats, coverage and project rates.
Energy & UtilitiesElectricity Cost CalculatorCalculate energy consumption and cost for appliances or equipment over a chosen period.
Roofing & ExteriorGutter Cost CalculatorMeasure gutter runs, calculate complete sections and separate downspout, removal and installation costs.
Outdoor ProjectsFence Installation Cost CalculatorCalculate approximate fence bays and posts around gate openings, then price panels, footings and labor independently.
Walls & CeilingsDrywall Cost CalculatorConvert wall and ceiling measurements into sheet quantities and a material, fastener and installation budget.
Outdoor ProjectsMulch CalculatorCalculate mulch volume by depth, compare bag quantity and build a separate bulk-delivery budget.
Insulation & VentilationAttic Insulation Cost CalculatorDetermine additional nominal R-value, batt or roll layers, package quantities and costs for a measured attic floor.
Outdoor ProjectsDeck Construction Cost CalculatorCalculate whole decking boards from deck geometry and stock lengths, with framing and railing priced separately.
Painting & FinishesExterior Painting Cost CalculatorInclude gable surfaces and subtract unpainted openings before calculating exterior paint and labor quantities.
Outdoor ProjectsLawn Installation Cost CalculatorPlan sod pieces and topsoil volume independently, allowing for patios, paths and other non-lawn surfaces.
Heating & CoolingAir Conditioner Cost CalculatorSeparate equipment, installation and line-set costs, then examine a cooling energy scenario with your chosen efficiency and operating hours.
Plumbing & WaterWater Heater Cost CalculatorMeasure the energy needed to raise water temperature and keep water-heater installation costs distinct from electricity charges.
Kitchen & BathBathroom Remodel Cost CalculatorCombine floor and tiled-wall quantities with the actual fixture, plumbing and renovation allowances for a bathroom budget.
Flooring & InteriorsTile Installation Cost CalculatorCount tile boxes and mortar packages using measured floor area and product sizes, then add quoted installation expenses.
Concrete & FoundationsDriveway Cost CalculatorEstimate concrete, compacted stone base and rectangular edge form quantities, with removal and labor entered separately.
Plumbing & WaterWhole House Repiping Cost CalculatorBudget hot and cold supply line replacement with measured pipe runs, separate connections and wall-repair allowances.
Concrete & FoundationsFoundation Repair Cost CalculatorCompare separate pier-support, crack-treatment and excavation quantities without assuming a structural repair design.
Heating & CoolingFurnace Cost CalculatorCompare rated furnace fuel use with your quoted equipment, venting, removal and installation costs.
Heating & CoolingHeat Pump Cost CalculatorEstimate rated heating electricity and itemize a heat pump installation budget without assuming local market prices.
Heating & CoolingDuctwork Cost CalculatorCalculate main and branch duct stock separately before adding fitting, insulation and installation quotes.
Roofing & ExteriorRoof Decking Cost CalculatorCalculate roof sheathing sheets with pitch and waste, plus separate sheathing removal and installation quotes.
Roofing & ExteriorRoof Repair Cost CalculatorSize isolated roofing patches, round material orders and price labor, removal and flashing separately.
Plumbing & WaterWater Supply Line Cost CalculatorCompare purchased supply-line pipe, buried route excavation and quoted connections without assuming site-specific code requirements.
Plumbing & WaterDrain Pipe Repair Cost CalculatorEstimate localized waste-pipe repairs with separate pipe sections, couplings, opened finishes and plumbing labor.
Plumbing & WaterSump Pump Cost CalculatorMeasure basin working volume and discharge stock before comparing separately quoted sump pump components.
Concrete & FoundationsCrawl Space Encapsulation Cost CalculatorMeasure floor and wall liner coverage, estimate roll and tape quantities, and build a budget for crawl space moisture-control work.
Windows & DoorsExterior Door Cost CalculatorPlan door and frame quantities, stock trim, removal, weather sealing and installation costs for measured exterior openings.
Roofing & ExteriorSiding Cost CalculatorCalculate exterior wall coverage with gables and openings, then estimate siding carton quantities and costs.
Kitchen & BathKitchen Remodel Cost CalculatorCombine kitchen surfaces, cabinetry, appliances, trade work and removal into a single quote-based renovation budget.
Home Construction & RemodelingHome Addition Cost CalculatorEstimate addition square footage across storeys and separate shell, interior, building systems, site and design allowances.
Home Construction & RemodelingADU Construction Cost CalculatorBudget a detached accessory dwelling unit using gross floor area, separately measured utilities and itemized construction quotations.
Outdoor ProjectsTree Removal Cost CalculatorOrganize arborist quotes by trees, crew time, equipment usage, hauling loads and stump grinding.
Outdoor ProjectsPatio Cost CalculatorMeasure a rectangular paver patio and order complete cartons, subbase aggregate, bedding and edge restraints.
Outdoor ProjectsPool Construction Cost CalculatorCalculate approximate gallons, geometric shell quantities and a project budget using contractor-provided unit prices.
Energy & UtilitiesSolar Installation Cost CalculatorSize a panel-count scenario, calculate DC kilowatts and model energy production separately from the installed project budget.
Energy & UtilitiesHome Battery Cost CalculatorCompare nominal battery energy, depth of discharge and assumed inverter losses before pricing equipment and installation.
Pest TreatmentTermite Treatment Cost CalculatorBuild a treatment service budget using the scope specified by a licensed pest professional without estimating chemical dosage.
Garage & Home SystemsGarage Door Cost CalculatorMeasure garage openings, count optional openers and itemize replacement equipment, sealing, removal and installation.
Accessible HomesWheelchair Ramp Cost CalculatorConvert an entrance rise to a selected ramp run scenario and estimate walking surface, landings and rail quantities.
Accessible HomesStair Lift Cost CalculatorCalculate whole track sections and price the carriage, quoted direction changes, electrical work and installation separately.
Heating & CoolingHVAC Repair vs Replace CalculatorCompare lifetime-of-decision costs for repairing an existing system versus installing a quoted replacement.
Roofing & ExteriorRoof Area and Pitch CalculatorTurn building dimensions, separate overhangs and a uniform gable pitch into measured roof surface and order area.
Roofing & ExteriorRoofing Material Quantity CalculatorConvert measured roof area into whole product purchase quantities without assuming that all roofing bundles cover the same area.
Insulation & VentilationAttic Ventilation Area CalculatorCalculate net free ventilation area and count vents from their labeled airflow openings, with code-dependent assumptions identified.
Plumbing & WaterPipe Volume CalculatorFind the internal liquid volume of circular pipe runs from the bore diameter, with gallons, liters and exchange-volume quantities.
Electrical & PowerGenerator Runtime EstimatorCalculate modeled generator run time using a verified fuel-consumption rate rather than guessing a linear fuel curve.
Electrical & PowerEV Charging Cost CalculatorCompare recurring home or public EV charging charges using supplied electricity and network fee inputs, without mixing in installation costs.
Concrete & FoundationsConcrete Volume CalculatorAdd multiple rectangular sections and round piers into one volume order, with separate whole-bag and ready-mix quantities.
Plumbing & WaterDrainage Pipe Slope CalculatorTurn measured invert elevations into downhill fall, percent grade and target-drop comparisons for a drainage run.
Insulation & VentilationInsulation R-Value CalculatorCalculate the added insulation thickness needed for a selected nominal R-value and count packages using coverage at that thickness.
Windows & DoorsWindow Energy Savings CalculatorModel heat-transfer changes from U-factor upgrades using your heating and cooling degree-days and electric-system efficiency.
Painting & FinishesPaint Quantity CalculatorMeasure wall and ceiling surfaces, deduct openings, then calculate finish paint and primer purchases using the selected product’s coverage.
Flooring & InteriorsFlooring Quantity CalculatorPlan flooring purchases by carton coverage, with separate underlayment and perimeter trim counts rather than a labor-cost estimate.
Walls & CeilingsDrywall Sheet CalculatorCount complete drywall panels using wall and ceiling grids, with optional fasteners and compound quantities for a materials order.
Kitchen & BathTile Quantity CalculatorPlan tile purchases from a rectangular tile grid and manufacturer package counts, keeping installation labor out of the materials takeoff.
Outdoor ProjectsFence Materials CalculatorCalculate straight-run fencing materials with separate gate openings, post quantities and optional concrete bags.
Outdoor ProjectsDeck Board CalculatorCount decking rows and whole stock boards, with separate fastening quantities for a rectangular surface.
Outdoor ProjectsLandscape Gravel CalculatorConvert a gravel bed into order quantities using measured depth, material density and packaging yield.
Outdoor ProjectsConcrete Paver CalculatorPlan rectangular paver rows, pack purchases and subbase materials using independently specified layer depths.
Outdoor ProjectsPool Volume CalculatorCalculate pool water capacity for simple shapes, with optional estimated filling time from your flow rate.
Energy & UtilitiesSolar Panel Payback CalculatorCompare a user-specified solar investment with annual energy value and model the year when cumulative savings recover its cost.
Accessible HomesRamp Length CalculatorCalculate the length and landing space needed to overcome an elevation change at a chosen ramp slope.
Garage & Home SystemsGarage Floor Epoxy Cost CalculatorEstimate epoxy and primer kit purchases for a measured concrete garage floor, with separate surface-preparation and installation quotes.
Restoration & CleanupMold Remediation Cost CalculatorCompare remediation quotes by assessed work area, specified removals, containment zones and equipment days without diagnosing mold.
Pest TreatmentRodent Exclusion Cost CalculatorBudget for measured rodent-entry sealing, approved vent protection and contractor follow-up work without assuming infestation size.
Outdoor ProjectsFrench Drain CalculatorEstimate French drain excavation, gravel, pipe sections, fabric coverage and a materials budget from trench dimensions.
Plumbing & WaterRainwater Harvesting CalculatorConvert an individual rainfall event into potential rooftop runoff and calculate stored gallons, overflow and nonpotable-use duration.
Plumbing & WaterWater Leak Cost CalculatorCalculate leak volume from measured gallons per minute or drips per minute, then estimate volume-based utility charges.
Plumbing & WaterShower Water Usage CalculatorCompare current and alternative showerhead use with adjustable shower duration, household frequency and energy assumptions.
Plumbing & WaterWater Softener Sizing CalculatorEstimate the nominal grain capacity needed for a household based on tested hardness, treated gallons and regeneration targets.
Outdoor ProjectsIrrigation Water Usage CalculatorEstimate watering volume and total run time from net irrigation depth, effective rainfall and measured system flow.
Outdoor ProjectsRetaining Wall Block CalculatorCount complete retaining wall block courses, matching caps, and a specified rectangular gravel zone.
Walls & CeilingsBrick Wall CalculatorEstimate a single brick face from modular brick dimensions, openings and nominal mortar joints.
Painting & FinishesStucco Material CalculatorEstimate stucco volume and bags from total applied thickness and product-specific wet-mix yield.
Painting & FinishesWallpaper Roll CalculatorCalculate complete wallpaper drops and rolls with a specified straight-match pattern repeat.
Painting & FinishesCaulk and Sealant CalculatorConvert measured joint dimensions into sealant volume and complete cartridge purchases.
Home Construction & RemodelingContractor Quote Comparison CalculatorNormalize two contractor quotations for excluded items, allowances, fees and contingency before comparing total cost.
Garage & Home SystemsGarage Conversion Cost CalculatorEstimate surface quantities and itemized costs for finishing an existing garage as conditioned space.
Home Construction & RemodelingBasement Finishing Cost CalculatorPlan floor and wall materials for basement finishing while keeping moisture work and contractor costs visible.
Outdoor ProjectsShed Building Materials CalculatorEstimate a shed envelope with separate wall, floor and roof sheathing quantities and nominal framing counts.
Concrete & FoundationsDriveway Sealcoating CalculatorPlan an asphalt driveway maintenance coat by surface area, product coverage and purchased pails.
Outdoor ProjectsPergola Materials CalculatorCount nominal support posts and rafter rows for a rectangular pergola with separately priced materials.
Plumbing & WaterToilet Water Savings CalculatorEstimate water and utility savings from replacing a toilet using measured flush rates and household use.
Outdoor ProjectsPool Heating Cost CalculatorEstimate fuel required to warm pool water through a chosen temperature increase before ongoing weather losses.
Heating & CoolingHome Heat Loss CalculatorCompare envelope heat transmission and an optional sensible infiltration scenario at a specified temperature difference.
Energy & UtilitiesInsulation Upgrade Savings CalculatorCompare seasonal conductive heat losses before and after an insulation upgrade using your local weather assumptions.
Walls & CeilingsInterior Wall Framing CalculatorPlan a preliminary non-engineered wall framing takeoff, including studs, top/bottom plates and optional material costs.
Calculating an estimate

Measurements first. Prices second.

01

Measure the project

Use actual lengths, widths, heights and equipment ratings. A measurement error carries through the entire calculation.

02

Include realistic allowances

Cut waste, roofing pitch, coat count and whole-box purchases affect different projects in different ways.

03

Apply itemized quotes

Enter local supplier and labor prices separately. The resulting breakdown stays tied to your own assumptions.

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