All tools
Browse 232 US construction calculators
Every calculator is free, needs no sign-up, and shows its formula. Results are estimates for educational use only — always verify with your supplier or a licensed professional before ordering or building.
Concrete & Foundations
View category →-
Cement Bags Calculator
Estimates how many bags of Quikrete, Sakrete, or other premix concrete needed for a project
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Concrete Column Calculator
Calculates concrete for round and square columns, sonotubes, and piers by height and diameter
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Concrete Footing Calculator
Estimates concrete for strip, spread, and trench footings
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Concrete Mix Ratio Calculator
Calculates cement, sand, gravel ratios for custom mix concrete
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Concrete Pump Line Calculator
Estimates concrete pump line length and reach for site placement
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Concrete Slab Calculator
Calculates concrete volume for slabs, patios, sidewalks, and driveways
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Concrete Slump Calculator
Reference for concrete slump test values by application type
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Concrete Steps Calculator
Estimates concrete volume for outdoor steps and porch stairs
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Concrete Wall Calculator
Calculates concrete volume for poured walls, foundation walls, and stem walls
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Mortar Calculator
Estimates mortar bags needed for brick, block, or stone laying
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Post Hole Concrete Calculator
Calculates concrete needed for setting fence posts, deck posts, or mailbox posts
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Ready-Mix Truck Volume Calculator
Calculates how many ready-mix concrete trucks needed for a pour
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Rebar / Reinforcement Calculator
Calculates rebar quantity, length, and weight for slabs and footings
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Self-Leveling Underlayment Calculator
Calculates self-leveling underlayment for concrete floor prep before tile or vinyl install
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Water-Cement Ratio Calculator
Calculates water-cement ratio for concrete strength
Roofing
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Flat Roof Material Calculator
Calculates EPDM, TPO, or modified bitumen for flat roofs
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Roof Furring Strip Calculator
Calculates furring strips for metal roof or board-and-batten installation
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Gutter Calculator
Estimates linear feet of gutters and downspouts needed for a roof
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Hip Roof Area Calculator
Calculates total hip roof surface area from footprint and pitch
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Metal Roofing Calculator
Calculates metal roof panels by area
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Ridge Cap Calculator
Calculates ridge cap shingles or cap pieces by ridge length
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Roof Area Calculator
Calculates total roof area from footprint and pitch
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Roof Flashing Calculator
Estimates step flashing, drip edge, and valley flashing needed
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Roof Pitch Calculator
Calculates roof pitch in rise/run format and converts to angle
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Roof Vent / Ventilation Calculator
Calculates required roof ventilation NFA per IRC 1:300 rule
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Roofing Underlayment Calculator
Estimates synthetic underlayment, felt, or ice and water shield rolls needed
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Asphalt Shingle Calculator
Calculates asphalt shingles by squares (100 sq ft)
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Skylight Opening Calculator
Calculates rough opening dimensions for skylights
Timber & Framing
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Baseboard Calculator
Calculates baseboard linear feet by room perimeter with door deductions
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Deck Framing Calculator
Calculates deck joists, beams, and posts
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Decking Board Calculator
Calculates deck boards by area
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Floor Joist Calculator
Estimates floor joist count by room dimensions and spacing
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I-Joist Calculator
Estimates engineered I-joist count for floor framing
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Lumber Calculator
Calculates board feet and linear feet of lumber for any project
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Nail / Screw Quantity Calculator
Estimates nails or screws needed by board count and project type
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Rafter Length Calculator
Calculates rafter length by run and roof pitch
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Shed Lumber Calculator
Estimates lumber for a backyard shed by floor plan and shed size
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Wood Shrinkage Calculator
Reference for wood shrinkage by species and moisture content change
Masonry & Brickwork
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Brick Arch Calculator
Calculates bricks needed for arched openings by span and rise
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Brick Calculator
Calculates bricks needed for walls or veneer
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Brick Tie Spacing Calculator
Estimates brick ties needed for veneer wall by area and code spacing
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Concrete Block / CMU Calculator
Calculates concrete masonry units (CMU) for walls and foundations
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Lintel Bearing Length Calculator
Reference for lintel bearing length over openings
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Moisture Barrier Calculator
Calculates moisture barrier or vapor barrier sheeting needed for walls or floors
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Net Wall Area Calculator
Calculates net wall area by subtracting windows and doors
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Quoin / Corner Brick Calculator
Estimates corner bricks for quoin detailing on brick veneer
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Repointing Mortar Calculator
Estimates mortar quantity for repointing brick joints by wall area
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Retaining Wall Calculator
Calculates blocks, base material, and backfill for segmental retaining walls
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Stone Wall Calculator
Estimates stone tonnage for retaining walls or veneer by area and stone type
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Stucco Calculator
Estimates stucco bags for exterior wall coverage
Driveway & Hard Paving
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Asphalt Calculator
Calculates asphalt tonnage for driveway or parking lot paving
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Block Paver Calculator
Calculates concrete or brick driveway pavers by area
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Concrete Driveway Calculator
Calculates concrete cubic yards and cost for a poured driveway
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Driveway Cost Calculator
Estimates total driveway cost by surface type
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Driveway Edging Calculator
Estimates linear feet of driveway edging or border strip
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Permeable Paver Calculator
Calculates permeable pavers and base material for stormwater-friendly driveway
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Resin-Bound Stone Calculator
Calculates resin-bound aggregate for driveway surface
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Stepping Stone Calculator
Calculates stepping stones needed for a garden path by length and stride
Flooring
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Bamboo Floor Calculator
Calculates bamboo flooring planks needed by area and plank size
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Carpet Calculator
Calculates carpet square yards and square footage with seam planning
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Cork Flooring Calculator
Estimates cork flooring planks or tiles by room area
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Epoxy Floor Coating Calculator
Estimates epoxy gallons for garage floor or basement coating
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Flooring Calculator
General flooring square footage calculator with waste factor for any flooring type
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Grout Calculator
Estimates grout bags needed by tile size and joint width
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Hardwood Floor Calculator
Calculates hardwood flooring square footage and bundles by board size
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Herringbone Floor Calculator
Calculates herringbone or chevron pattern flooring with extra waste factor
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Laminate Flooring Calculator
Estimates laminate planks and boxes needed by room dimensions
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Self-Leveling Compound Calculator
Calculates self-leveling compound bags for floor prep
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Tile Adhesive / Thinset Calculator
Calculates thinset mortar or tile adhesive bags by area and trowel size
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Tile Calculator
Calculates floor and wall tiles by square footage with waste and pattern adjustments
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Tile Spacer Calculator
Estimates tile spacers needed by tile count and size
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Underlayment Calculator
Estimates underlayment rolls or sheets for laminate, vinyl, hardwood, or tile floors
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Vinyl / LVT Flooring Calculator
Estimates LVP, LVT, and sheet vinyl flooring quantities
Insulation & Energy
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Air Sealing / Weatherstripping Calculator
Estimates weatherstripping and caulk needed for air sealing
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Floor Insulation Calculator
Calculates floor insulation for crawlspace or basement ceiling
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Spray Foam Calculator
Estimates spray foam board feet by area and depth
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Triple-Pane Window Savings Calculator
Estimates energy savings from triple-pane window upgrade
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Wall Insulation Cost Calculator
Estimates wall insulation cost
Painting & Decorating
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Deck Stain Calculator
Estimates deck stain or sealer gallons
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Exterior Paint Calculator
Estimates exterior house paint gallons by siding area and coat count
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Fence Stain Calculator
Calculates fence stain or sealer gallons by linear feet of fencing
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Paint Thinning Calculator
Reference for paint thinning ratios for sprayer use
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Paint Weight Calculator
Calculates paint weight by gallon for shipping or load planning
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Painting Cost Calculator
Estimates painting project cost by room area, paint cost, and labor
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Primer Calculator
Calculates primer gallons for walls, ceilings, or exterior
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Spray Paint Coverage Calculator
Calculates spray paint cans needed by area
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Wallpaper Paste Calculator
Estimates wallpaper paste needed by wallpaper roll count
Plumbing & Heating
View category →Drainage & Earthworks
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Crushed Stone Base Calculator
Calculates crushed stone or gravel base material for paver, driveway, or shed pads
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Cut and Fill Calculator
Calculates cut and fill volumes for site grading
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Dry Well / Soakaway Calculator
Calculates dry well size for stormwater drainage by roof area and rainfall
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Dumpster Size Calculator
Calculates dumpster size needed by debris volume
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Excavation Volume Calculator
Calculates excavation cubic yards for foundations, pools, or basements
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French Drain Calculator
Calculates French drain materials
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Pipe Slope Calculator
Calculates pipe fall by length and slope
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Soil Compaction Calculator
Reference for soil compaction factor by soil type
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Soil Volume to Tons Calculator
Converts soil cubic yards to tons by soil type density
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Yard Drainage Calculator
Estimates drain pipe length and gravel for yard drainage system
Conversions & Units
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Acres to Hectares Calculator
Converts acres to hectares and vice versa
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Acres to Square Feet Calculator
Converts acres to square feet and vice versa
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BTU to kW Calculator
Converts BTUs to kilowatts and vice versa
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Cubic Yards to Cubic Meters
Converts cubic yards to cubic meters
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Cubic Yards to Tons Calculator
Converts cubic yards of gravel, soil, or sand to tons by material density
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Fahrenheit to Celsius Calculator
Converts Fahrenheit to Celsius
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Feet and Inches to Meters
Converts feet and inches to meters and centimeters
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Gallons to Liters Calculator
Converts US gallons to liters
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Linear Feet to Square Feet
Converts linear feet to square feet by board or material width
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Pounds to Bags Calculator
Converts pounds of material to bag count
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Room Area Calculator
Calculates room area in square feet by length and width
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Slope / Grade Calculator
Calculates slope as percentage, ratio, or degrees
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Square Feet to Square Meters
Converts square feet to square meters and vice versa
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Volume Calculator
Calculates volume in cubic feet or cubic yards for any rectangular space
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Waste Factor Calculator
Adds waste factor to material quantities
Planning & Budgeting
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Architect Fee Calculator
Estimates architect fees by project type and value
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Build Project Budget Calculator
Estimates total construction project budget
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Build Project Timeline Calculator
Estimates project duration by trade sequence and phase
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Ceiling Height Calculator
Reference for ceiling height by room type
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General Contractor Markup Calculator
Estimates general contractor overhead and profit markup
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Contractor Labor Cost Calculator
Estimates contractor and trade labor costs by hours, rates, and trade type
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Material Cost Calculator
Calculates total material cost from quantities and unit prices
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Project Contingency Calculator
Calculates contingency budget
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Room Size Calculator
Calculates room dimensions for furniture, layout, or space planning
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Structural Engineer Cost Calculator
Estimates structural engineer fees for residential or commercial projects
Time & Labour
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Bricklaying Time Calculator
Estimates bricklaying labor hours by wall area and brick size
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Concrete Cure Time Calculator
Reference for concrete cure time by mix and conditions
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Drywall / Hanging Time Calculator
Estimates drywall hanging and finishing labor hours by sheet count
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Excavation Time Calculator
Estimates excavation hours by volume and equipment type
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Flooring Installation Time Calculator
Estimates flooring install hours by material type and area
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Groundwork Time Calculator
Estimates site prep labor hours
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Paint Drying Time Calculator
Reference for paint drying and recoat times by paint type and conditions
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Painting Time Calculator
Estimates painting labor hours by wall area, coats, and finish
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Roofing Time Calculator
Estimates roof install or replacement hours by squares and crew size
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Tiling Time Calculator
Estimates tile installation hours by area and tile size
Kitchen
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Kitchen Backsplash Calculator
Calculates kitchen backsplash tile area between counter and upper cabinets
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Kitchen Cabinet Calculator
Estimates cabinet count and linear feet by kitchen layout
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Kitchen Countertop Calculator
Calculates countertop square footage by linear feet of cabinets
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Kitchen Grout Calculator
Calculates grout for backsplash and floor tile in kitchen
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Kitchen Renovation Cost Calculator
Estimates kitchen renovation cost by tier and scope
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Range Hood / Vent Hood Sizing Calculator
Calculates range hood CFM by stove BTU output and kitchen size
Bathroom
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Bathroom Renovation Cost Calculator
Estimates total bathroom renovation cost
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Bathroom Tile Calculator
Calculates bathroom floor and wall tile by area
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Bathtub Volume Calculator
Calculates bathtub volume in gallons for water heater sizing
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Shower Pan Size Calculator
Calculates shower pan dimensions for typical shower stalls
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Shower Slope / Pre-Slope Calculator
Calculates shower floor slope for proper drainage
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Toilet Clearance Checker
Reference for IRC toilet clearances
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Towel Warmer BTU Calculator
Estimates BTU needed for hydronic towel warmer by bathroom size
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Waterproof Membrane Calculator
Calculates Schluter Kerdi, RedGard, or Hydro Ban waterproofing membrane
Wall & Ceiling
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Ceiling Joist Calculator
Calculates ceiling joist count by room dimensions and spacing
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Ceiling Paint Calculator
Estimates ceiling paint by ceiling area separately from walls
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Chair Rail Calculator
Calculates chair rail molding linear feet for a room
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Crown Molding Calculator
Calculates crown molding linear feet with miter waste allowance
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Acoustic Ceiling Tile Calculator
Calculates drop ceiling tiles, grid, and runners for suspended ceilings
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Drywall Calculator
Calculates drywall sheets needed by room area
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Drywall Screw Calculator
Estimates drywall screws by sheet count and stud spacing
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Drywall Tape Calculator
Calculates linear feet of drywall tape needed by sheet count
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Joint Compound / Mud Calculator
Estimates joint compound (mud) buckets needed for drywall finishing
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Paint Calculator
Calculates gallons of paint needed by wall area and coat count
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Wall Cladding / Siding Calculator
Calculates exterior siding by wall area
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Stud Wall Calculator
Calculates studs, plates, and headers for framing a wall
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Wall Insulation Calculator
Estimates wall insulation batts or rolls
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Wallpaper Calculator
Calculates wallpaper rolls needed including pattern repeat allowance
Windows & Doors
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Curtain / Blind Size Calculator
Calculates curtain or blind dimensions by window size
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Door Rough Opening Calculator
Calculates rough opening dimensions for pre-hung doors
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Glass Replacement Calculator
Estimates glass replacement panel size and cost
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Glass Weight Calculator
Calculates glass panel weight by area and thickness
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Sliding / Patio Door Calculator
Calculates sliding patio door rough opening
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Window Area Calculator
Calculates window glass area for energy or replacement planning
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Window Replacement Cost Calculator
Estimates window replacement cost
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Window Sill Calculator
Calculates window sill or stool material by linear feet of windows
HVAC & Ventilation
View category →Landscaping & Outdoor
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Artificial Turf Calculator
Calculates artificial turf rolls and infill needed by area
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Compost Calculator
Calculates compost cubic yards or bags for garden amendment
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Drip Irrigation Calculator
Estimates drip line, emitters, and fittings for garden irrigation
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Fence Calculator
Estimates fence posts, rails, panels, and pickets by length
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Grass Seed Calculator
Estimates grass seed pounds for new lawn or overseeding by area
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Gravel / Aggregate Calculator
Calculates gravel cubic yards or tons by area and depth
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Greenhouse Size Calculator
Calculates greenhouse footprint by plant count and bench layout
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Irrigation Pipe Sizing Calculator
Reference for irrigation pipe size by GPM flow rate
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Landscape Timber Calculator
Estimates landscape timbers or railroad ties needed for raised beds and edging
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Mulch Calculator
Calculates mulch cubic yards or bags needed by garden bed area and depth
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Paver Calculator
Calculates patio pavers or stones needed by area
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Pond Liner Calculator
Calculates EPDM pond liner size needed including overlap
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Pond Volume Calculator
Calculates pond water volume in gallons by dimensions
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Rain Barrel Size Calculator
Calculates rain barrel size by roof catchment area and rainfall
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Raised Bed Soil Calculator
Calculates soil cubic feet or yards needed to fill a raised garden bed
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Rockery Stone Calculator
Calculates landscape boulders or rockery stones by tonnage
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Sand Calculator
Calculates sand by tons or cubic yards
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Sod Calculator
Calculates sod rolls or pallets needed by lawn area
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Sprinkler Coverage Calculator
Calculates sprinkler head count and coverage for lawn irrigation
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Topsoil Calculator
Calculates cubic yards of topsoil needed for lawn or garden coverage
Structural Steel & Metal
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Angle Iron Weight Calculator
Calculates structural angle weight by leg dimensions and length
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Hollow Section / Tube Steel Weight Calculator
Calculates HSS (hollow structural section) tube weight by dimensions
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Steel I-Beam Weight Calculator
Calculates steel I-beam, W-section, or S-section weight by length
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Steel Plate Weight Calculator
Calculates steel plate weight by dimensions and thickness
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Steel Stud Wall Calculator
Estimates light gauge steel studs for non-load-bearing walls
Project Cost Estimators
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Attic Conversion Cost Calculator
Estimates cost to convert attic to living space
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Bathroom Remodel Cost Calculator
Estimates bathroom remodel cost
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Deck / Patio Cost Calculator
Estimates deck or patio construction cost
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Flooring Installation Cost Calculator
Estimates flooring install cost by material
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Garage Conversion Cost Calculator
Estimates garage to living space conversion cost
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Home Addition Cost Calculator
Estimates home addition cost per square foot
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House Painting Cost Calculator
Estimates exterior or interior house painting cost
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HVAC Replacement Cost Calculator
Estimates HVAC system replacement cost
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Insulation Installation Cost Calculator
Estimates insulation install cost by type
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Kitchen Remodel Cost Calculator
Estimates kitchen remodel cost
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New Home Build Cost Calculator
Estimates new home build cost per square foot
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Pool Build Cost Calculator
Estimates inground pool construction cost
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Roof Replacement Cost Calculator
Estimates roof replacement cost by material type
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Room Renovation Cost Calculator
Estimates room renovation cost by size, finish level, and scope
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Stucco / Siding Cost Calculator
Estimates exterior stucco or siding cost
Surveying & Mapping
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Area from Coordinates Calculator
Calculates land area from survey coordinate points
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Bearing and Distance Calculator
Calculates bearing and distance between two GPS points
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Contour Interval Calculator
Reference for contour intervals on topographic maps by scale
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GPS Coordinate Converter
Converts GPS coordinates between decimal degrees, DMS, and UTM
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Land Area Converter
Converts between acres, square feet, hectares, and square meters
Sustainability & Green Build
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Embodied Carbon Calculator
Estimates embodied carbon of construction materials
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EV Charger Installation Cost Calculator
Estimates Level 2 EV charger install cost
Coming soon -
Green Roof Weight Calculator
Calculates green roof load weight for structural reference
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Rainwater Harvesting Calculator
Calculates rainwater catchment potential by roof area and rainfall
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Renovation Carbon Footprint Calculator
Estimates carbon footprint of a home renovation by material choices
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Wind Turbine Output Calculator
Reference for residential wind turbine output by size and wind speed
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Window Energy Savings Calculator
Estimates energy savings from window replacement by U-factor improvement
Swimming Pool
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Pool Concrete Calculator
Calculates concrete cubic yards for gunite or shotcrete pool shell
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Pool Liner Size Calculator
Calculates vinyl pool liner replacement size by pool dimensions
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Pool Tile Calculator
Calculates waterline pool tile linear feet and square footage
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Pool Volume Calculator
Calculates pool water volume in gallons
Waterproofing
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Crystalline Waterproofing Calculator
Calculates crystalline waterproofing coverage for concrete
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Cavity Drain / Drainboard Calculator
Calculates dimpled drainboard for basement walls or under-slab drainage
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Foundation Waterproofing Calculator
Calculates waterproofing membrane for foundation walls
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Liquid Rubber / Roof Coating Calculator
Calculates liquid rubber or elastomeric roof coating gallons
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Tanking Slurry Calculator
Calculates cementitious waterproofing for basements and below-grade walls