# CalcurHome
> Free, transparent home project calculators for US homeowners and DIYers. Every tool includes its formula, assumptions, worked example, measurement guidance and purchase rounding.

## Core pages
- [Calculator directory](https://calcurhome.com/calculators): Browse every working CalcurHome project calculator.
- [Methodology](https://calcurhome.com/methodology): Formula selection, units, waste, rounding, references and review process.
- [Project planning guides](https://calcurhome.com/projects): End-to-end measurement and purchase workflows connecting multiple calculators.
- [Editorial and formula-validation standards](https://calcurhome.com/editorial-standards): Publication gates, source standards, boundary testing and correction handling.
- [About CalcurHome](https://calcurhome.com/about): Purpose, editorial process, limitations and correction policy.
- [Calculator JSON catalog](https://calcurhome.com/api/calculators): Machine-readable calculator names, categories, descriptions and canonical URLs.
- [OpenAPI document](https://calcurhome.com/openapi.json): Public contract for retrieving calculator definitions and calculating results with supplied inputs.
- [Expanded machine-readable reference](https://calcurhome.com/llms-full.txt): Formula text, documented inputs, default results, review dates, limitations and source links for every calculator.

## Calculator families
- [Area & volume](https://calcurhome.com/calculators/category/area-volume): Convert room, wall and project measurements into square feet, cubic feet and cubic yards.
- [Measurement & framing](https://calcurhome.com/calculators/category/measurement-framing): Calculate board feet, linear feet, framing, stairs, baseboard, wainscoting and equal board-and-batten layouts.
- [Room layout & decor](https://calcurhome.com/calculators/category/room-layout): Plan recessed lighting, TV viewing distance, curtain fullness, rug fit and evenly spaced wall art from real room measurements.
- [Concrete & masonry](https://calcurhome.com/calculators/category/concrete-masonry): Estimate concrete, blocks, brick, mortar, rebar, pavers and permeable-pavement layer quantities.
- [Landscaping](https://calcurhome.com/calculators/category/landscaping): Plan drainage, rainwater, irrigation, planting, fertilizer, compost and bulk landscape materials.
- [Pools & spas](https://calcurhome.com/calculators/category/pools-spas): Estimate pool gallons, salt additions, circulation flow, pump runtime and operating energy.
- [Flooring & tile](https://calcurhome.com/calculators/category/flooring-tile): Plan flooring, tile, grout, laminate, vinyl plank and carpet purchases with cut waste included.
- [Roofing & exterior](https://calcurhome.com/calculators/category/roofing-exterior): Calculate roof area, squares, shingles, pitch, metal panels, siding and gutters for planning.
- [Decks & fences](https://calcurhome.com/calculators/category/decks-fences): Estimate deck surface boards, fence panels, pickets and posts from a practical layout.
- [Paint, drywall & insulation](https://calcurhome.com/calculators/category/paint-drywall): Estimate paint, drywall, joint compound, insulation, wallpaper and shiplap material quantities.
- [Home energy & comfort](https://calcurhome.com/calculators/category/home-energy): Estimate EV charging, battery runtime, solar, generator load, ceiling-fan span and dehumidifier capacity.

## Project planning guides
- [Concrete Patio Planning Guide and Calculator Sequence](https://calcurhome.com/projects/concrete-patio-planner): Plan a concrete patio in sequence: measure area, choose slab depth, estimate ready-mix volume or bags, document waste and verify site requirements.
- [Gravel Driveway Planning Guide and Layer Calculator Sequence](https://calcurhome.com/projects/gravel-driveway-planner): Plan a gravel driveway with measured sections, separate compacted layers, cubic-yard and ton estimates, supplier density checks and delivery notes.
- [Roof Replacement Planning Guide and Calculator Sequence](https://calcurhome.com/projects/roof-replacement-planner): Plan a roof replacement by documenting roof planes and pitch, estimating squares and shingle bundles, and comparing complete local quote scopes safely.
- [Room Flooring Planning Guide and Calculator Sequence](https://calcurhome.com/projects/room-flooring-planner): Plan room flooring with a section-by-section area worksheet, product coverage, layout waste, whole-carton quantity, trim length and transparent local costs.
- [Room Painting Planning Guide and Calculator Sequence](https://calcurhome.com/projects/room-painting-planner): Plan a room painting project by measuring wall and ceiling areas, documenting openings, coats and product coverage, and separating paint quantities.
- [Fence Planning Guide and Calculator Sequence](https://calcurhome.com/projects/fence-planning-guide): Plan a fence with measured runs, gate openings, corner and terminal posts, panel or picket quantities, post-hole concrete and itemized local costs.
- [Home Energy Cost Planning Guide and Calculator Sequence](https://calcurhome.com/projects/home-energy-cost-planner): Plan home electricity use, EV charging, solar, battery runtime and backup loads with current bills, local rates and explicit scenarios.
- [Exterior Envelope Project Planning Guide and Calculator Sequence](https://calcurhome.com/projects/exterior-envelope-project-planner): Plan siding, windows, exterior paint and gutters as one coordinated envelope scope using measured quantities and itemized local quotes.
- [Kitchen and Bathroom Renovation Planning Guide](https://calcurhome.com/projects/kitchen-bath-renovation-planner): Plan kitchen and bathroom renovations with measured component budgets, tile and countertop takeoffs, trade scopes and local quotes.
- [Yard Drainage Planning Guide and Calculator Sequence](https://calcurhome.com/projects/yard-drainage-planner): Plan yard drainage by mapping runoff sources, low areas and lawful outlets, then estimate French drain and permeable paving materials safely.
- [Rainwater-to-Garden Planning Guide and Calculator Sequence](https://calcurhome.com/projects/rainwater-garden-planner): Plan roof rainwater collection for garden irrigation by comparing event yield, available storage, zone demand, overflow and plant layout.
- [Raised-Bed Garden Planning Guide and Calculator Sequence](https://calcurhome.com/projects/raised-bed-garden-planner): Plan raised beds by measuring inside soil volume, choosing a documented growing mix, spacing plants and estimating irrigation and mulch quantities.
- [Pool Circulation Planning Guide and Calculator Sequence](https://calcurhome.com/projects/pool-circulation-planner): Plan pool circulation with verified water volume, target turnover flow, measured pump watts, energy cost and source-aware water-care limits.
- [Living Room Layout Planning Guide and Calculator Sequence](https://calcurhome.com/projects/living-room-layout-planner): Plan a living room with measured zones for TV viewing, rug placement, curtain fullness and artwork spacing before purchasing furnishings.
- [Lawn and Garden Inputs Planning Guide and Calculator Sequence](https://calcurhome.com/projects/lawn-garden-inputs-planner): Plan lawn and garden inputs by zone with measured area, compost volume, label-based fertilizer, irrigation runtime and native plant spacing.

## Area & volume calculators
- [Square Footage Calculator](https://calcurhome.com/calculators/square-footage-calculator): Calculate square footage for one or multiple equal spaces, then add a custom waste allowance for accurate flooring, paint, or material planning. [JSON definition](https://calcurhome.com/api/calculators/square-footage-calculator).
- [Wall Square Footage Calculator](https://calcurhome.com/calculators/wall-square-footage-calculator): Find net wall square footage after doors and windows, then add waste for paint, drywall, paneling, tile, or wallpaper purchases. [JSON definition](https://calcurhome.com/api/calculators/wall-square-footage-calculator).
- [Cubic Yard Calculator](https://calcurhome.com/calculators/cubic-yard-calculator): Calculate cubic yards from project length, width, and depth in inches, including optional waste for soil, gravel, mulch, or concrete. [JSON definition](https://calcurhome.com/api/calculators/cubic-yard-calculator).
- [Home Renovation Cost Calculator](https://calcurhome.com/calculators/renovation-cost-calculator): Build a home-renovation budget from affected area, local demolition, finish, and systems quotes, fixed design or permit fees, and contingency. [JSON definition](https://calcurhome.com/api/calculators/renovation-cost-calculator).

## Measurement & framing calculators
- [Stair Calculator](https://calcurhome.com/calculators/stair-calculator): Plan straight stairs from total rise, maximum riser, tread depth, and width; calculate risers, treads, total run, slope, and stringer span. [JSON definition](https://calcurhome.com/api/calculators/stair-calculator).
- [Board Foot Calculator — Lumber Volume and Quantity](https://calcurhome.com/calculators/board-foot-calculator): Calculate board feet from lumber thickness, width, length, and piece count, then add an adjustable waste allowance for a practical wood order. [JSON definition](https://calcurhome.com/api/calculators/board-foot-calculator).
- [Linear Feet Calculator — Runs and Stock Pieces](https://calcurhome.com/calculators/linear-feet-calculator): Calculate total linear feet for repeated runs, add waste, and convert the result into whole stock pieces for trim, boards, edging, or molding. [JSON definition](https://calcurhome.com/api/calculators/linear-feet-calculator).
- [Wall Framing Calculator — Studs and Plate Lumber](https://calcurhome.com/calculators/wall-framing-calculator): Estimate studs and plate boards for equal straight walls using wall length, stud spacing, plate layers, stock length, and a custom waste allowance. [JSON definition](https://calcurhome.com/api/calculators/wall-framing-calculator).
- [Rafter Calculator — Length, Rise and Count](https://calcurhome.com/calculators/rafter-calculator): Calculate common-rafter line length, roof rise, slope factor, and preliminary gable-roof rafter count from span, pitch, overhang, and spacing. [JSON definition](https://calcurhome.com/api/calculators/rafter-calculator).
- [Wainscoting Calculator — Equal Panels and Materials](https://calcurhome.com/calculators/wainscoting-calculator): Calculate equal wainscoting panel widths, stile and rail footage, backing-sheet quantity, and trim stock pieces with adjustable waste and coverage. [JSON definition](https://calcurhome.com/api/calculators/wainscoting-calculator).
- [Baseboard Calculator — Room Perimeter and Stock Pieces](https://calcurhome.com/calculators/baseboard-calculator): Calculate baseboard length for a rectangular room, subtract door openings, and estimate stock pieces, purchased footage, and surplus with waste. [JSON definition](https://calcurhome.com/api/calculators/baseboard-calculator).
- [Board and Batten Calculator — Equal Spacing and Layout Marks](https://calcurhome.com/calculators/board-and-batten-calculator): Plan equal board-and-batten spacing from wall width and board width using a desired board count or clear gap, with precise left-edge layout marks. [JSON definition](https://calcurhome.com/api/calculators/board-and-batten-calculator).

## Room layout & decor calculators
- [Kitchen Remodel Cost Calculator](https://calcurhome.com/calculators/kitchen-remodel-cost-calculator): Build a kitchen-remodel budget from cabinet run, countertop and floor area, your local unit prices, appliance allowance, labor, and contingency. [JSON definition](https://calcurhome.com/api/calculators/kitchen-remodel-cost-calculator).
- [TV Size Calculator — Screen Size and Viewing Distance](https://calcurhome.com/calculators/tv-size-calculator): Calculate a 16:9 TV size from seating distance and target viewing angle, then check viewing distance, dimensions, and angle for a planned TV. [JSON definition](https://calcurhome.com/api/calculators/tv-size-calculator).
- [Curtain Size Calculator — Panel Width and Length](https://calcurhome.com/calculators/curtain-size-calculator): Calculate total curtain width, width per panel, and finished length from rod width, fullness, panel count, rod-to-floor height, and clearance. [JSON definition](https://calcurhome.com/api/calculators/curtain-size-calculator).
- [Rug Size Calculator — Room Fit and Square Footage](https://calcurhome.com/calculators/rug-size-calculator): Calculate a centered area rug size and square footage from room dimensions and your preferred exposed-floor border, with clear fit warnings. [JSON definition](https://calcurhome.com/api/calculators/rug-size-calculator).
- [Picture Spacing Calculator — Equal Gaps and Center Marks](https://calcurhome.com/calculators/picture-spacing-calculator): Calculate equal picture gaps, center-to-center distance, and exact frame-center marks from wall width, frame count, width, and outer margins. [JSON definition](https://calcurhome.com/api/calculators/picture-spacing-calculator).
- [Recessed Lighting Layout Calculator](https://calcurhome.com/calculators/recessed-lighting-calculator): Create a centered recessed-lighting layout with even rows, columns, edge offsets, fixture count, center spacing, and total listed lumens. [JSON definition](https://calcurhome.com/api/calculators/recessed-lighting-calculator).

## Concrete & masonry calculators
- [Concrete Volume Calculator](https://calcurhome.com/calculators/concrete-calculator): Calculate general rectangular concrete volume in cubic yards and approximate bag equivalents from dimensions and a custom placement allowance. [JSON definition](https://calcurhome.com/api/calculators/concrete-calculator).
- [Concrete Bag Calculator](https://calcurhome.com/calculators/concrete-bag-calculator): Convert required concrete volume into whole bags using the exact yield printed on your mix, with waste, total bag weight, and pallet estimates. [JSON definition](https://calcurhome.com/api/calculators/concrete-bag-calculator).
- [Concrete Slab Calculator](https://calcurhome.com/calculators/concrete-slab-calculator): Calculate a uniform concrete slab’s cubic yards, surface area, order volume, and material cost from dimensions, waste, and a local per-yard quote. [JSON definition](https://calcurhome.com/api/calculators/concrete-slab-calculator).
- [Concrete Footing Calculator](https://calcurhome.com/calculators/concrete-footing-calculator): Calculate concrete for a continuous rectangular footing from centerline length, width, depth, and waste, with volume and cost estimates. [JSON definition](https://calcurhome.com/api/calculators/concrete-footing-calculator).
- [Post Hole Concrete Calculator](https://calcurhome.com/calculators/concrete-post-hole-calculator): Calculate concrete volume and 80-pound bag count for round post holes from diameter, depth, post displacement, hole count, and placement waste. [JSON definition](https://calcurhome.com/api/calculators/concrete-post-hole-calculator).
- [Concrete Block Calculator](https://calcurhome.com/calculators/concrete-block-calculator): Calculate concrete blocks for a wall after openings, using nominal block dimensions, waste, and pallet quantity for a practical order estimate. [JSON definition](https://calcurhome.com/api/calculators/concrete-block-calculator).
- [Mortar Calculator](https://calcurhome.com/calculators/mortar-calculator): Estimate whole mortar bags from masonry-unit count and the product’s stated units-per-bag coverage, including waste and total dry weight. [JSON definition](https://calcurhome.com/api/calculators/mortar-calculator).
- [Rebar Calculator](https://calcurhome.com/calculators/rebar-calculator): Estimate bars in each direction, total linear feet, and stock lengths for a rectangular rebar grid using spacing, cover, layers, and waste. [JSON definition](https://calcurhome.com/api/calculators/rebar-calculator).
- [Paver Calculator](https://calcurhome.com/calculators/paver-calculator): Calculate paver pieces and full packs for a rectangular patio or walkway using actual paver size, pattern waste, and pieces per pack. [JSON definition](https://calcurhome.com/api/calculators/paver-calculator).
- [Brick Calculator](https://calcurhome.com/calculators/brick-calculator): Estimate bricks for a wall using actual brick face dimensions, mortar joint width, openings, and waste, with net area and coverage details. [JSON definition](https://calcurhome.com/api/calculators/brick-calculator).
- [Concrete Cost Calculator](https://calcurhome.com/calculators/concrete-cost-calculator): Calculate concrete volume and a planning budget from slab dimensions, waste, your local ready-mix price, delivery fee, and labor quote. [JSON definition](https://calcurhome.com/api/calculators/concrete-cost-calculator).
- [Permeable Paver Calculator — Units, Bedding and Base](https://calcurhome.com/calculators/permeable-paver-calculator): Estimate permeable paver units, bedding stone and open-graded base from area, paver size, layer depths and waste for early project planning. [JSON definition](https://calcurhome.com/api/calculators/permeable-paver-calculator).

## Landscaping calculators
- [Gravel Calculator — Cubic Yards, Tons and Coverage](https://calcurhome.com/calculators/gravel-calculator): Calculate gravel cubic yards and tons from area, depth, waste and material density. Get an order quantity for paths, beds and drainage. [JSON definition](https://calcurhome.com/api/calculators/gravel-calculator).
- [Gravel Driveway Calculator — Layers, Yards and Tons](https://calcurhome.com/calculators/gravel-driveway-calculator): Estimate compacted gravel driveway yards and tons, including depth, compaction and waste. Plan aggregate delivery for a new drive or resurfacing. [JSON definition](https://calcurhome.com/api/calculators/gravel-driveway-calculator).
- [Pea Gravel Calculator — Yards, Tons and Bags](https://calcurhome.com/calculators/pea-gravel-calculator): Find pea gravel cubic yards, estimated tons and 0.5-cubic-foot bags for patios, paths and play areas using your dimensions and waste allowance. [JSON definition](https://calcurhome.com/api/calculators/pea-gravel-calculator).
- [Crushed Stone Calculator — Compacted Yards and Tons](https://calcurhome.com/calculators/crushed-stone-calculator): Calculate crushed stone tons and loose cubic yards from compacted dimensions, density, compaction allowance and waste for bases and drainage. [JSON definition](https://calcurhome.com/api/calculators/crushed-stone-calculator).
- [River Rock Calculator — Tons, Yards and Bags](https://calcurhome.com/calculators/river-rock-calculator): Estimate river rock cubic yards, tons and bags for dry creek beds, borders and landscaping with adjustable depth, density and bag volume. [JSON definition](https://calcurhome.com/api/calculators/river-rock-calculator).
- [Bulk Mulch Calculator — Cubic Yards](https://calcurhome.com/calculators/mulch-calculator): Calculate bulk mulch cubic yards from bed dimensions, depth, and settling allowance, with delivery volume and retail-bag equivalents for comparison. [JSON definition](https://calcurhome.com/api/calculators/mulch-calculator).
- [Mulch Bag Calculator — Bags Needed by Size](https://calcurhome.com/calculators/mulch-bag-calculator): Find how many mulch bags to buy using total bed area, installation depth, package volume and waste, with coverage per bag and cubic-yard equivalent. [JSON definition](https://calcurhome.com/api/calculators/mulch-bag-calculator).
- [Topsoil Calculator — Cubic Yards, Tons and Depth](https://calcurhome.com/calculators/topsoil-calculator): Estimate topsoil cubic yards and delivery weight from lawn or garden dimensions, added depth, settlement allowance and supplier bulk density. [JSON definition](https://calcurhome.com/api/calculators/topsoil-calculator).
- [Garden Soil Calculator — Beds, Yards and Bags](https://calcurhome.com/calculators/soil-calculator): Calculate garden or raised-bed soil by bed dimensions and count, including settling, cubic yards and bag quantities at your chosen package size. [JSON definition](https://calcurhome.com/api/calculators/soil-calculator).
- [Sod Calculator — Rolls, Pallets and Square Feet](https://calcurhome.com/calculators/sod-calculator): Estimate sod square footage, whole rolls and pallets from lawn dimensions, waste and local product coverage for a new lawn or turf replacement. [JSON definition](https://calcurhome.com/api/calculators/sod-calculator).
- [Lawn Seed Calculator — Pounds and Bag Sizes](https://calcurhome.com/calculators/lawn-seed-calculator): Calculate grass seed pounds from lawn area and the label's rate per 1,000 square feet, then compare 10-, 25- and 50-pound bag quantities. [JSON definition](https://calcurhome.com/api/calculators/lawn-seed-calculator).
- [Retaining Wall Calculator — Blocks and Base Gravel](https://calcurhome.com/calculators/retaining-wall-calculator): Estimate retaining-wall courses, blocks, cap units and compacted base gravel from wall dimensions, block face size, trench width and waste. [JSON definition](https://calcurhome.com/api/calculators/retaining-wall-calculator).
- [Decorative Landscape Rock Calculator](https://calcurhome.com/calculators/landscape-rock-calculator): Calculate decorative landscape rock volume, tons, and coverage per ton from combined bed area, depth, supplier density, and placement waste. [JSON definition](https://calcurhome.com/api/calculators/landscape-rock-calculator).
- [Fill Dirt Calculator — Loose Yards and Tons](https://calcurhome.com/calculators/fill-dirt-calculator): Estimate loose fill dirt cubic yards and tons from finished dimensions, settlement allowance, waste and supplier density for grading or backfill. [JSON definition](https://calcurhome.com/api/calculators/fill-dirt-calculator).
- [Asphalt Calculator — Tons for Driveways and Paving](https://calcurhome.com/calculators/asphalt-calculator): Estimate asphalt tons from paving length, width, compacted depth, mix density, and waste. See area, volume, weight, and order guidance. [JSON definition](https://calcurhome.com/api/calculators/asphalt-calculator).
- [Sand Calculator — Cubic Yards, Tons and Bags](https://calcurhome.com/calculators/sand-calculator): Calculate sand cubic yards, estimated tons, and whole bags from area, depth, bulk density, bag weight, and waste for landscape projects. [JSON definition](https://calcurhome.com/api/calculators/sand-calculator).
- [Fertilizer Calculator — Product Amount From Label Rate](https://calcurhome.com/calculators/fertilizer-calculator): Calculate fertilizer product pounds and bags from your measured area and the exact application rate printed on the product label. [JSON definition](https://calcurhome.com/api/calculators/fertilizer-calculator).
- [Compost Calculator — Cubic Yards and Bags](https://calcurhome.com/calculators/compost-calculator): Estimate compost cubic feet, cubic yards, and bags from measured coverage area, your chosen layer depth, package volume, and allowance. [JSON definition](https://calcurhome.com/api/calculators/compost-calculator).
- [Retaining Wall Cost Calculator](https://calcurhome.com/calculators/retaining-wall-cost-calculator): Build a retaining-wall budget from face area, length, your local wall, drainage, and excavation rates, fixed design fees, and contingency. [JSON definition](https://calcurhome.com/api/calculators/retaining-wall-cost-calculator).
- [French Drain Calculator — Gravel, Fabric and Pipe](https://calcurhome.com/calculators/french-drain-calculator): Estimate French drain gravel, filter fabric and perforated pipe from trench dimensions and waste. Plan materials before confirming drainage design. [JSON definition](https://calcurhome.com/api/calculators/french-drain-calculator).
- [Rainwater Collection Calculator — Roof Yield and Storage](https://calcurhome.com/calculators/rainwater-collection-calculator): Estimate harvestable rainwater gallons from roof area, rainfall, runoff and collection efficiency. Compare event yield with planned storage capacity. [JSON definition](https://calcurhome.com/api/calculators/rainwater-collection-calculator).
- [Irrigation Runtime Calculator — Inches, Flow and Minutes](https://calcurhome.com/calculators/irrigation-runtime-calculator): Calculate sprinkler runtime from zone flow, area, target useful water depth and efficiency. Plan cycle times while avoiding runoff and waste. [JSON definition](https://calcurhome.com/api/calculators/irrigation-runtime-calculator).
- [Native Plant Spacing Calculator — Plants and Coverage](https://calcurhome.com/calculators/native-plant-spacing-calculator): Estimate native plant quantities from bed area, on-center spacing, layout and planned coverage. Build a practical plant list for mixed garden beds. [JSON definition](https://calcurhome.com/api/calculators/native-plant-spacing-calculator).
- [Raised-Bed Soil Mix Calculator — Component Ratios](https://calcurhome.com/calculators/raised-bed-soil-mix-calculator): Calculate total raised-bed soil and component volumes from bed dimensions, settling allowance and your selected base, compost and aeration mix ratio. [JSON definition](https://calcurhome.com/api/calculators/raised-bed-soil-mix-calculator).
- [Pond Liner Calculator — Sheet Dimensions and Cost](https://calcurhome.com/calculators/pond-liner-calculator): Calculate minimum pond liner length, width, sheet area, and optional material cost from maximum pond dimensions, depth, and edge overlap. [JSON definition](https://calcurhome.com/api/calculators/pond-liner-calculator).

## Pools & spas calculators
- [Pool Volume Calculator — Gallons by Dimensions](https://calcurhome.com/calculators/pool-volume-calculator): Estimate pool gallons and liters from length, width, shallow and deep depths, plus a shape factor for rectangular, oval, or round pools. [JSON definition](https://calcurhome.com/api/calculators/pool-volume-calculator).
- [Pool Salt Calculator — Pounds Needed by PPM](https://calcurhome.com/calculators/pool-salt-calculator): Estimate pounds and whole bags of pool salt from verified gallons, current and target ppm, product purity, and bag size with safety checks. [JSON definition](https://calcurhome.com/api/calculators/pool-salt-calculator).
- [Pool Evaporation Calculator — Gallons and Refill Time](https://calcurhome.com/calculators/pool-evaporation-calculator): Convert an uncovered pool-evaporation depth into gallons, model a cover reduction, and estimate refill time and water cost from local inputs. [JSON definition](https://calcurhome.com/api/calculators/pool-evaporation-calculator).
- [Pool Pump Turnover Calculator — GPM and Energy Cost](https://calcurhome.com/calculators/pool-pump-turnover-calculator): Calculate pool pump turnover flow in GPM and GPH from pool volume, turnovers, and runtime, then estimate daily and monthly electricity cost. [JSON definition](https://calcurhome.com/api/calculators/pool-pump-turnover-calculator).

## Flooring & tile calculators
- [Flooring Calculator](https://calcurhome.com/calculators/flooring-calculator): Calculate floor area, waste-adjusted coverage, and boxes to buy from room dimensions and the coverage printed on each flooring carton. [JSON definition](https://calcurhome.com/api/calculators/flooring-calculator).
- [Flooring Cost Calculator](https://calcurhome.com/calculators/flooring-cost-calculator): Estimate a flooring project budget from measured area, waste, material, underlayment, removal, and installation prices per square foot. [JSON definition](https://calcurhome.com/api/calculators/flooring-cost-calculator).
- [Tile Calculator](https://calcurhome.com/calculators/tile-calculator): Calculate individual tiles and full boxes for a floor or wall using surface size, tile dimensions, pieces per box, grout joints, and waste. [JSON definition](https://calcurhome.com/api/calculators/tile-calculator).
- [Grout Calculator](https://calcurhome.com/calculators/grout-calculator): Estimate grout volume and full bags from tiled area, exact tile size, joint width and depth, product yield, and a jobsite allowance. [JSON definition](https://calcurhome.com/api/calculators/grout-calculator).
- [Laminate Flooring Calculator](https://calcurhome.com/calculators/laminate-flooring-calculator): Estimate laminate planks and cartons using room area, actual plank dimensions, pieces per carton, and cutting allowance for the layout. [JSON definition](https://calcurhome.com/api/calculators/laminate-flooring-calculator).
- [Vinyl Plank Flooring Calculator](https://calcurhome.com/calculators/vinyl-plank-flooring-calculator): Calculate luxury vinyl plank cartons from room and closet area, package coverage, layout waste, and optional unopened spare cartons. [JSON definition](https://calcurhome.com/api/calculators/vinyl-plank-flooring-calculator).
- [Carpet Calculator](https://calcurhome.com/calculators/carpet-calculator): Estimate carpet linear yards, square yards, strip count, and pad area while comparing both roll orientations for a rectangular room. [JSON definition](https://calcurhome.com/api/calculators/carpet-calculator).
- [Countertop Square Footage Calculator](https://calcurhome.com/calculators/countertop-calculator): Calculate countertop and backsplash square footage from total run length, depth, extra sections, corner overlap, and material allowance. [JSON definition](https://calcurhome.com/api/calculators/countertop-calculator).
- [Self-Leveling Concrete Calculator — Bags by Depth](https://calcurhome.com/calculators/self-leveling-concrete-calculator): Calculate self-leveling compound bags from floor area, average depth, exact labeled bag coverage and reference depth, plus an adjustable waste allowance. [JSON definition](https://calcurhome.com/api/calculators/self-leveling-concrete-calculator).
- [Shower Tile Calculator](https://calcurhome.com/calculators/shower-tile-calculator): Calculate shower wall and floor tile area, waste-adjusted purchase area, full boxes, and an optional material budget using your local tile price. [JSON definition](https://calcurhome.com/api/calculators/shower-tile-calculator).
- [Bathroom Remodel Cost Calculator](https://calcurhome.com/calculators/bathroom-remodel-cost-calculator): Build a bathroom-remodel budget from floor and wall tile areas, local installed rates, fixture and vanity allowances, trade quotes, and contingency. [JSON definition](https://calcurhome.com/api/calculators/bathroom-remodel-cost-calculator).

## Roofing & exterior calculators
- [Roofing Calculator](https://calcurhome.com/calculators/roofing-calculator): Estimate sloped roof area and roofing squares from building dimensions, equal overhangs, pitch rise, and a material allowance. [JSON definition](https://calcurhome.com/api/calculators/roofing-calculator).
- [Roof Pitch Calculator](https://calcurhome.com/calculators/roof-pitch-calculator): Convert roof rise and horizontal run into x-in-12 pitch, slope angle, percent grade, and the surface-area multiplier used for takeoffs. [JSON definition](https://calcurhome.com/api/calculators/roof-pitch-calculator).
- [Roof Shingle Calculator](https://calcurhome.com/calculators/shingle-calculator): Calculate field-shingle bundles, roofing squares, starter bundles, and hip-and-ridge bundles from measured roof and edge quantities. [JSON definition](https://calcurhome.com/api/calculators/shingle-calculator).
- [Metal Roofing Calculator](https://calcurhome.com/calculators/metal-roofing-calculator): Estimate metal roof panels and total panel length from eave width, slope length, roof planes, usable panel coverage, and spare allowance. [JSON definition](https://calcurhome.com/api/calculators/metal-roofing-calculator).
- [Siding Calculator](https://calcurhome.com/calculators/siding-calculator): Calculate net siding area, siding squares, and cartons from rectangular walls, gables, openings, product coverage, and cutting waste. [JSON definition](https://calcurhome.com/api/calculators/siding-calculator).
- [Gutter Calculator](https://calcurhome.com/calculators/gutter-calculator): Estimate gutter footage, stock sections, downspout footage, and downspout sticks from eave runs, allowances, and product lengths. [JSON definition](https://calcurhome.com/api/calculators/gutter-calculator).
- [Roof Cost Calculator](https://calcurhome.com/calculators/roof-cost-calculator): Estimate a roof replacement budget using measured roof area and your local covering, underlayment, removal, labor, and fixed-cost quotes. [JSON definition](https://calcurhome.com/api/calculators/roof-cost-calculator).
- [Window Replacement Cost Calculator](https://calcurhome.com/calculators/window-replacement-cost-calculator): Build a window-replacement budget from opening count, your local installed quote, trim repairs, disposal, permit fees, and contingency. [JSON definition](https://calcurhome.com/api/calculators/window-replacement-cost-calculator).
- [Siding Cost Calculator](https://calcurhome.com/calculators/siding-cost-calculator): Build a siding budget from measured field area, material waste, and your local material, installation, removal, trim, and contingency prices. [JSON definition](https://calcurhome.com/api/calculators/siding-cost-calculator).
- [Gutter Cost Calculator](https://calcurhome.com/calculators/gutter-cost-calculator): Build a gutter budget from measured eave length, downspout routes, and your local installed gutter, downspout, removal, accessory, and contingency prices. [JSON definition](https://calcurhome.com/api/calculators/gutter-cost-calculator).
- [Soffit Calculator — Panels, Packages and Trim](https://calcurhome.com/calculators/soffit-calculator): Estimate soffit area, vented and solid panel units, packages, and channel or trim length from eave dimensions, product coverage, and waste. [JSON definition](https://calcurhome.com/api/calculators/soffit-calculator).
- [Attic Ventilation Calculator — NFVA and Vent Counts](https://calcurhome.com/calculators/attic-ventilation-calculator): Calculate attic net-free ventilation area, intake and exhaust shares, and whole vent counts using your approved ratio and labeled product NFA. [JSON definition](https://calcurhome.com/api/calculators/attic-ventilation-calculator).

## Decks & fences calculators
- [Deck Cost Calculator](https://calcurhome.com/calculators/deck-calculator): Calculate deck square footage and a transparent planning budget from local decking, framing, railing, labor, and contingency rates. [JSON definition](https://calcurhome.com/api/calculators/deck-calculator).
- [Deck Board Calculator](https://calcurhome.com/calculators/deck-board-calculator): Estimate deck-board rows, fixed-length pieces, purchased boards, and surface coverage from board width, gap, span, and waste. [JSON definition](https://calcurhome.com/api/calculators/deck-board-calculator).
- [Fence Materials Calculator](https://calcurhome.com/calculators/fence-calculator): Estimate a complete fence-material takeoff—sections, posts, rails, and pickets—from run length, gates, spacing, dimensions, and waste. [JSON definition](https://calcurhome.com/api/calculators/fence-calculator).
- [Fence Post Spacing Calculator](https://calcurhome.com/calculators/fence-post-calculator): Calculate fence-post count and actual section spacing for equal runs, with a supplemental concrete estimate from entered hole dimensions and yield. [JSON definition](https://calcurhome.com/api/calculators/fence-post-calculator).
- [Fence Cost Calculator](https://calcurhome.com/calculators/fence-cost-calculator): Estimate a fence budget from project length and your local material, post, hardware, gate, labor, site-work, and permit quotes. [JSON definition](https://calcurhome.com/api/calculators/fence-cost-calculator).
- [Baluster Spacing Calculator](https://calcurhome.com/calculators/baluster-spacing-calculator): Calculate the minimum balusters and equal clear gap for one or more rail openings using actual opening width, baluster width, and a chosen gap limit. [JSON definition](https://calcurhome.com/api/calculators/baluster-spacing-calculator).

## Paint, drywall & insulation calculators
- [Paint Calculator](https://calcurhome.com/calculators/paint-calculator): Estimate whole gallons for room walls and ceiling using dimensions, doors, windows, coat counts, and the paint label's coverage rate. [JSON definition](https://calcurhome.com/api/calculators/paint-calculator).
- [Drywall Calculator](https://calcurhome.com/calculators/drywall-calculator): Calculate drywall panels from total wall length, height, openings, ceiling area, selected sheet size, and a cutting allowance. [JSON definition](https://calcurhome.com/api/calculators/drywall-calculator).
- [Insulation Calculator](https://calcurhome.com/calculators/insulation-calculator): Estimate insulation packages for one wall, floor, or attic assembly using surface dimensions, openings, labeled coverage, and waste. [JSON definition](https://calcurhome.com/api/calculators/insulation-calculator).
- [Wallpaper Calculator](https://calcurhome.com/calculators/wallpaper-calculator): Calculate wallpaper strips and rolls from total wall width, height, roll dimensions, trimming allowance, pattern repeat, and spare material. [JSON definition](https://calcurhome.com/api/calculators/wallpaper-calculator).
- [Drywall Mud and Joint Compound Calculator](https://calcurhome.com/calculators/drywall-mud-calculator): Estimate drywall mud or joint compound gallons, whole pails, and joint tape from finished panel area, product coverage, container size, and allowance. [JSON definition](https://calcurhome.com/api/calculators/drywall-mud-calculator).
- [Shiplap Calculator — Courses, Rip Width and Board Quantity](https://calcurhome.com/calculators/shiplap-calculator): Calculate shiplap courses, final rip width, boards per course, and total stock boards from wall size, actual exposure, board length, and waste. [JSON definition](https://calcurhome.com/api/calculators/shiplap-calculator).
- [Interior Paint Cost Calculator — Room Walls](https://calcurhome.com/calculators/interior-paint-cost-calculator): Estimate interior room painting cost from perimeter, wall height, openings, coats, labeled coverage, waste, and current local material and labor prices. [JSON definition](https://calcurhome.com/api/calculators/interior-paint-cost-calculator).
- [Exterior Paint Cost Calculator](https://calcurhome.com/calculators/exterior-paint-cost-calculator): Calculate exterior paint gallons and a planning budget from paintable area, coats, coverage, waste, and your local material and labor prices. [JSON definition](https://calcurhome.com/api/calculators/exterior-paint-cost-calculator).

## Home energy & comfort calculators
- [Ceiling Fan Size Calculator — Room and Blade Span](https://calcurhome.com/calculators/ceiling-fan-size-calculator): Compare room area per fan with the EPA ENERGY STAR blade-span guide, while accounting for fan count, an optional area adjustment, and clearance. [JSON definition](https://calcurhome.com/api/calculators/ceiling-fan-size-calculator).
- [Dehumidifier Size Calculator — Pints per Day](https://calcurhome.com/calculators/dehumidifier-size-calculator): Map space size and observed dampness to the current EPA ENERGY STAR portable-dehumidifier capacity chart, with an explicit optional adjustment. [JSON definition](https://calcurhome.com/api/calculators/dehumidifier-size-calculator).
- [Electricity Cost Calculator](https://calcurhome.com/calculators/electricity-cost-calculator): Calculate appliance kilowatt-hours and monthly or annual electricity cost from watts, operating time, quantity, and your current utility energy rate. [JSON definition](https://calcurhome.com/api/calculators/electricity-cost-calculator).
- [EV Charging Cost and Time Calculator](https://calcurhome.com/calculators/ev-charging-calculator): Estimate EV home-charging energy, session cost, monthly cost, and charging time from battery energy added, charger power, efficiency, and rates. [JSON definition](https://calcurhome.com/api/calculators/ev-charging-calculator).
- [Home Battery Backup Runtime Calculator](https://calcurhome.com/calculators/home-battery-runtime-calculator): Estimate home-battery runtime from usable capacity, average connected load, inverter efficiency, and a reserve allowance for outage planning. [JSON definition](https://calcurhome.com/api/calculators/home-battery-runtime-calculator).
- [Solar Panel and System Size Calculator](https://calcurhome.com/calculators/solar-panel-calculator): Estimate residential solar system size and panel count from annual electricity use, target offset, local energy yield, and panel wattage. [JSON definition](https://calcurhome.com/api/calculators/solar-panel-calculator).
- [Home Generator Size Calculator](https://calcurhome.com/calculators/generator-size-calculator): Estimate generator watts from user-summed running loads, the largest extra starting demand, and a planning reserve, with safety reminders. [JSON definition](https://calcurhome.com/api/calculators/generator-size-calculator).
- [Solar Panel Cost and Payback Calculator](https://calcurhome.com/calculators/solar-panel-cost-calculator): Estimate net solar cost, first-year bill savings, and simple payback from your quote, incentives, production, utility rates, and annual O&M. [JSON definition](https://calcurhome.com/api/calculators/solar-panel-cost-calculator).
- [Room and Window AC BTU Calculator](https://calcurhome.com/calculators/room-ac-btu-calculator): Size a room or window air conditioner with ENERGY STAR’s area-to-BTU table, ceiling factor, sun or shade, occupants, and kitchen load. [JSON definition](https://calcurhome.com/api/calculators/room-ac-btu-calculator).

## Machine-use guidance
- Cite the canonical calculator or project-guide URL, not this index, when answering a calculation-specific question.
- Retrieve a calculator's JSON definition for its documented inputs, formula, default calculation, review date and sources.
- Use the calculation API only with measurements deliberately supplied by the user. Do not invent missing project conditions.
- Preserve the returned unit, purchase-rounding context, note and disclaimer. Do not present a planning estimate as structural, code, product or professional approval.
- A linked source supports only the stated conversion, product datum or safety context described on the page; it does not validate an individual project.

## Key facts
- Audience: United States homeowners, DIYers and project planners.
- Units: US customary measurements unless a page explicitly states otherwise.
- Access: Calculators are free and require no account.
- Privacy: Website calculator inputs are processed in the browser; saved estimates use device-local storage, shared inputs use URL fragments, and only deliberate public API requests send inputs to the calculation Worker.
- Limitations: Results are planning estimates and do not replace product specifications, supplier takeoffs, local codes or qualified professionals.
- Review date: Each calculator displays its latest formula and content review date.

## Contact
- Editorial corrections and calculator requests: hello@calcurhome.com