Construction Calculators
Construction calculators for materials, sizing, and home improvement
195 calculators available now
Septic Tank Size Calculator
Calculate the right septic tank size for your home
Rug Size Calculator
Find the perfect rug size for any room
Pool Pump Size Calculator
Calculate the right pool pump size for your swimming pool
Well Pump Size Calculator
Determine the correct well pump size for your needs
Roof Size Calculator
Calculate roof area for materials and cost estimation
Roofing Calculator
Comprehensive roof area and material estimator
Ceiling Fan Size Calculator
Find the right ceiling fan size for your room
Bathroom Mirror Size Calculator
Calculate the ideal bathroom mirror size
Wall Art Size Calculator
Find the perfect wall art size for your space
Chain Link Fence Cost Calculator
Estimate chain link fence materials and costs
Concrete Calculator
Calculate concrete needed for slabs
Paint Calculator
Calculate paint needed for rooms
Flooring Calculator
Calculate flooring materials needed
Drywall Calculator
Calculate drywall sheets needed
Tile Calculator
Calculate tiles needed for floors
Deck Calculator
Calculate deck boards needed
Lumber Calculator
Calculate board feet and linear feet
Fence Calculator
Calculate fence posts and materials
Concrete Block Calculator
Calculate concrete blocks (CMU) needed for walls
Feet and Inches Calculator
Add, subtract, multiply, and divide feet and inches
Road Base Calculator
Estimate gravel and road base tonnage for driveways
Gravel Calculator
Calculate gravel needed for driveways and pathways
Steel Plate Weight Calculator
Calculate the weight of steel plates by shape, size, thickness, and steel type
Steel Weight Calculator
Calculate steel weight for any shape: sheet, bar, tube, angle, channel, or I-beam
Stone Weight Calculator
Calculate stone weight, area, volume, and cost for slabs, blocks, and landscape stone
Thinset Calculator
Estimate how much thinset mortar you need for any tiling project
Taper Calculator
Calculate taper per foot, taper angle, and taper ratio for machining and fabrication
Thread Pitch Calculator
Calculate thread pitch, TPI, and thread depth for UNC, UNF, and metric threads
True Position Calculator
Calculate true position per GD&T with MMC bonus tolerance per ASME Y14.5
Trump's Wall Cost Calculator
Estimate the total cost of a border wall including materials, roads, lighting, and maintenance
Tonnage Calculator
Convert volume to tons for gravel, sand, concrete, and other construction materials
Thread Calculator
Calculate complete metric and imperial thread dimensions including pitch and minor diameters
Vinyl Fence Calculator
Calculate panels, posts, rails, and concrete needed for a vinyl fence project
Vinyl Fence Cost Calculator
Estimate the total cost of a vinyl fence with materials, labor, gates, and demolition
Vertical Curve Calculator
Calculate elevations along parabolic vertical curves for road and railway design
Wainscoting Calculator
Plan wainscoting layout with panel spacing, batten count, and molding length calculations
Vinyl Siding Calculator
Calculate how many squares of vinyl siding needed including windows, doors, and waste
Wood Beam Span Calculator
Check if a wood beam can safely span a given distance under specified loads per NDS 2018
Asphalt Calculator
Tons, cubic yards, and cost for paving projects
Paver Calculator
Calculate how many pavers needed for patio, driveway, or walkway
Deck Board Calculator
Calculate deck board spacing, number of boards, and materials needed
Concrete Slab Calculator
Calculate cubic yards of concrete needed for slab foundations
Retaining Wall Block Calculator
Calculate blocks, geogrid, and drainage for retaining walls
Mulch Calculator
Estimate mulch volume and cost for landscaping
Topsoil Calculator
Volume and cost of topsoil for lawns and gardens
Brick Calculator
Calculate bricks and mortar needed for walls
Sand Calculator
Calculate sand quantity in cubic meters, tons, or bags
Hardwood Flooring Calculator
Calculate flooring materials, boxes, and installation costs
Solar Panel Calculator
Calculate solar panels needed, production, and savings
BTU Calculator
Calculate heating and cooling BTU requirements
Mortar Calculator
Calculate mortar needed for brick masonry
Cement Calculator
Calculate cement, sand, and gravel for concrete
Air Conditioner Size Calculator
Calculate required AC size in BTU and tonnage
Laminate Flooring Calculator
Calculate laminate flooring materials with waste
Electricity Cost Calculator
Calculate electricity consumption and cost
Sod Calculator
Calculate sod quantity for lawn
Vinyl Plank Calculator
Calculate vinyl plank flooring needed
Insulation Calculator
Calculate insulation R-value needed
Stucco Calculator
Calculate stucco material quantity
Shingles Calculator
Calculate roof shingles needed
Fencing Cost Calculator
Calculate fence installation cost
Driveway Calculator
Calculate driveway materials needed
Gutter Calculator
Calculate gutter length needed
Wallpaper Calculator
Calculate wallpaper rolls needed
Crown Molding Calculator
Calculate crown molding length
Baseboard Calculator
Calculate baseboard material needed
Furnace Size Calculator
Calculate BTU for furnace sizing
Generator Size Calculator
Calculate generator wattage needed
Energy Savings Calculator
Calculate energy efficiency savings
Siding Calculator
Calculate house siding needed
Stair Calculator
Calculate staircase dimensions
Framing Calculator
Calculate wall framing materials
Concrete Mix Calculator
Calculate concrete mix ratios
Beam Calculator
Calculate beam load bearing
Underlayment Calculator
Calculate roofing underlayment materials
Rebar Calculator
Calculate concrete reinforcement needs
Drywall Mud Calculator
Calculate drywall mud/compound needed
Joint Compound Calculator
Calculate joint compound for drywall
Carpet Calculator
Calculate carpet needed for rooms
Backsplash Calculator
Calculate backsplash tile materials
Countertop Calculator
Calculate countertop materials and costs
Trim Calculator
Calculate interior trim materials
Patio Calculator
Calculate patio materials and layout
Deck Stain Calculator
Calculate deck staining materials
Acres Per Hour Calculator
Calculate mowing productivity and time to complete field work based on equipment
Cattle Per Acre Calculator
Calculate grazing capacity and stocking rates based on pasture condition and precipitation
Grass Seed Calculator
Calculate grass seed needed for new lawns or overseeding
Livestock Fence Cost Calculator
Estimate cost of livestock fencing materials and labor
Potting Soil Calculator
Calculate potting soil needed for containers
Lawn Mowing Cost Calculator
Estimate lawn mowing costs and time
Soil Calculator
Calculate topsoil volume and cost for gardens and lawns
Heat Pump Cost Savings Calculator
Compare heat pump vs gas furnace costs
Air Changes Per Hour Calculator
Calculate ACH for HVAC ventilation and indoor air quality assessment
Aluminum Weight Calculator
Calculate aluminum weight for various shapes including sheet, bar, tube, and angle
Angle Cut Calculator
Calculate miter saw and bevel cut angles for corner joints and trim work
Arch Calculator
Calculate elliptical arch dimensions including rise, span, and focal points
Baluster Calculator
Calculate baluster spacing and quantity for railing installations
Beam Deflection Calculator
Calculate beam deflection, reactions, and stress for various loading conditions
Beam Load Calculator
Calculate beam load capacity, tributary area, and span ratings
Bending Stress Calculator
Calculate bending stress distribution across beam cross-sections
Birdsmouth Cut Calculator
Calculate rafter birdsmouth cut dimensions including seat cut and plumb cut depth
Board and Batten Calculator
Calculate board and batten siding materials including board spacing and quantity
Board Foot Calculator
Calculate board feet volume for lumber pricing and quantity estimation
Board on Board Fence Calculator
Calculate board on board fence materials including pickets and rail spacing
Boiler Size Calculator
Calculate required boiler BTU output based on home size and heat loss factors
Bowl Segment Calculator
Calculate segment dimensions and angles for segmented woodturning projects
Box Fill Calculator
Calculate electrical box fill capacity per NEC code for conductors and devices
Building Thermal Bridge Heat Loss Calculator
Calculate heat loss through thermal bridges in building envelopes
CFM Calculator
Calculate required CFM airflow for room ventilation based on volume and air changes
Clearance Hole Calculator
Calculate close, normal, and loose fit clearance hole sizes for fasteners
Concrete Block Fill Calculator
Calculate concrete fill volume for CMU blocks and masonry walls
Concrete Column Calculator
Calculate concrete volume and materials for square and round columns
Concrete Cylinder Calculator
Calculate concrete volume for round columns, piers, and cylinders
Concrete Driveway Cost Calculator
Calculate concrete driveway materials, volume, and estimated installation cost
Concrete Stairs Calculator
Calculate concrete volume for staircases including steps and landings
Concrete Tube Calculator
Calculate concrete volume for Sonotube footings, columns, and cylindrical forms
Concrete Weight Calculator
Calculate concrete weight for slabs, blocks, cylinders, and custom shapes
Countersink Depth Calculator
Calculate countersink depth and pilot hole dimensions for screw fasteners
Crushed Stone Calculator
Calculate crushed stone volume in cubic yards and tons for landscaping and construction
Geothermal Heat Pump Depth Efficiency Calculator
Calculate geothermal ground loop efficiency based on depth and ground temperature
Heat Pump COP Calculator
Calculate coefficient of performance for heat pumps at different temperatures
LED Energy Saving vs Incandescent Calculator
Compare energy costs and savings between LED and incandescent lighting
Rainwater Harvesting System Size Calculator
Calculate rainwater collection potential and system sizing based on roof area and rainfall
Solar Thermal Water Heating Calculator
Calculate solar thermal system size and energy savings for domestic water heating
Swedish Beam Deflection Calculator
Calculate beam deflection per Swedish building standards (BBR/EKS)
Passive House Airtightness (ACH) Calculator
Calculate ACH50, natural ACH, air permeability, and Passive House certification compliance from blower door test data
Embodied Carbon of Building Materials Calculator
Calculate embodied carbon (kgCO₂e) for concrete, steel, timber, aluminum, glass, and other building materials with transport emissions
Door Header Size Calculator
Find the correct lumber size for your door header
DIY Shed Cost Calculator
Estimate the cost of building a DIY shed
Elevation Grade Calculator
Calculate elevation grade and slope percentage
Fence Estimate Calculator
Estimate fencing materials needed
Fence Picket Calculator
Calculate the number of pickets needed for your fence
Rectangle Fence Perimeter Calculator
Calculate the perimeter of a rectangular fence area
Fence Post Depth Calculator
Determine the ideal depth for fence posts
Fire Flow Calculator
Calculate required fire flow for buildings
Fence Material Calculator
Calculate pickets, posts, rails, and fence materials
Floor Area Ratio Calculator
Calculate Floor Area Ratio for zoning and development
Fire Glass Calculator
Find how much fire glass you need for your fire pit or fireplace
Square Feet to Cubic Yards Calculator
Convert square feet to cubic yards for concrete, soil, gravel, and landscaping
Floor Joist Calculator
Determine floor joist count, maximum spans, and cost for any building
Gallons per Square Foot Calculator
Determine how many gallons of liquid fit one square foot over a given depth
French Drain Calculator
Find gravel, pipe, and filter fabric needed for any French drain project
Gallons Per Minute Calculator (GPM)
Find water flow rate with bucket test or pipe velocity methods
Gambrel Roof Calculator
Rafter lengths, roof area, pitch break points for barn-style gambrel roofs
Glass Weight Calculator
Calculate glass weight by shape, size, thickness, and glass type
Gravel Driveway Calculator
Calculate gravel volume, weight, and cost for driveways
Hole Volume Calculator
Find volume of circular or rectangular holes with concrete bag estimates
Heat Loss Calculator
Estimate heater size needed for any room based on heat loss analysis
Junction Box Sizing Calculator
Determine junction box size per NEC 314.16 and 314.28
Hoop House Calculator
Design hoop house with cover area, hoop count, and heater size
Grout Calculator
Determine exact tile grout needed with box size and cost estimates
K-Factor Calculator
Calculate K-factor, bend allowance, and bend deduction for sheet metal bending
Ladder Angle Calculator
Calculate the correct ladder angle for safe use based on the 4:1 rule
Log Weight Calculator
Estimate log weight by wood species, diameter, length, and moisture content
Material Removal Rate Calculator
Calculate MRR for turning, milling, and drilling with spindle speed and power
Limestone Calculator
Calculate crushed limestone volume, weight in tons, and material cost
Lumber Weight Calculator
Calculate lumber weight by species, dimensions, and moisture content
Metal Roof Cost Calculator
Calculate metal roofing panels, total area, and installation cost
Miter Angle Calculator
Calculate miter and bevel angles for crown molding, frames, and polygons
Paver Sand Calculator
Calculate how much paver sand and base material you need for any patio or walkway
Pipe Volume Calculator
Calculate pipe volume and liquid weight in gallons, liters, and cubic feet
Volym i rör – Kalkylator (Swedish)
Beräkna volymen i ett rör och vätskevikten i liter, kubikmeter och gallon
Pitch Diameter Calculator
Calculate pitch diameter, thread depth, and tolerances for unified and metric threads
Plate Weight Calculator
Calculate steel plate weight by dimensions, gauge, or sheet size for any metal type
Plywood Calculator
Calculate the number of plywood sheets needed for floors, walls, and roofs
Pool Gallons Calculator
Calculate pool water volume in gallons for rectangular, round, oval, and irregular pools
Post Hole Concrete Calculator
Calculate concrete bags needed for fence and deck post holes with cost estimation
Privacy Fence Calculator
Calculate lumber, pickets, posts, and materials needed for a privacy fence
Rafter Length Calculator
Calculate rafter length, pitch angle, rise, and run for any roof pitch
Ramp Calculator
Calculate ramp length, slope angle, and ADA compliance for wheelchair ramps
Retaining Wall Calculator
Plan your retaining wall project with accurate estimates for blocks, cap stones, gravel backfill volume, and total material cost
Rip Rap Calculator
Calculate the amount of rip rap stone needed for erosion control projects with volume in cubic yards, weight in tons, and cost
River Rock Calculator
Calculate how much river rock you need for landscaping with volume, weight, bag count, and total cost estimates
Rivet Size Calculator
Determine the correct pop rivet or blind rivet size with recommended diameter, grip range, length, and drill bit size
Rolling Offset Calculator
Calculate travel length and run for pipe rolling offsets in plumbing, HVAC, and conduit with 22.5°, 30°, 45°, and 60° fittings
Räkna ut taklutning – Kalkylator (Swedish)
Beräkna taklutning i grader och procent med vår gratis kalkylator för takläggning och renovering
Roof Pitch Calculator
Calculate roof pitch in degrees and percent, rafter length, and slope ratio for roof framing and construction planning
Roof Truss Calculator
Calculate the number of roof trusses needed, rafter length, and total cost for any building project
Round Pen Calculator
Calculate the number of panels needed for a round pen based on diameter and panel length with circumference, area, and cost
SAG Calculator
Calculate the sagitta of a curved surface based on radius of curvature and chord length for optics, construction, and engineering
Size to Weight Calculator
Calculate the weight of a rectangular box based on dimensions and material density supporting steel, aluminum, wood, and more
Shiplap Calculator
Estimate shiplap boards and total material cost for wall paneling projects
Snow Load Calculator
Calculate snow weight on your roof and assess removal risk level
Sealant Calculator
Calculate how much sealant you need for joints and gaps
Spindle Speed Calculator
Calculate optimal spindle speed and feed rate for machining operations
Spiral Staircase Calculator
Design spiral staircase with tread dimensions and floor opening size
Spindle Spacing Calculator
Calculate exact spindle spacing for stair and deck railings
Räkna ut kvadratmeter – Kalkylator (Swedish)
Räkna ut kvadratmeter för rum, golv, väggar och tomter
Square Meter Calculator
Calculate area in square meters for any shape with unit conversions
Square Yard Calculator
Calculate square yardage of floors and area with cost estimation
Stair Carpet Calculator
Calculate the exact amount of carpet needed for stairs
Square Yards Calculator
Calculate area in square yards for multiple shapes with cost
Wall Square Footage Calculator
Calculate wall square footage for paint, wallpaper, or paneling with door and window deductions.
Welding Calculator – Strength of Weld Joints
Estimate the strength of fillet and groove weld joints based on electrode type and safety factors.
Wood Fence Calculator
Calculate wood fence materials: posts, pickets, rails, concrete, and hardware for your project.