Construction & Home Improvement Calculators
Free estimating tools for building, renovation, materials, and costs — designed for homeowners, contractors, and DIYers.
About CalcBuild
We provide accurate, easy-to-use calculators and tools to simplify life for contractors, homeowners, and DIY enthusiasts.
We thoughtfully design each tool to deliver just the right amount of information—whether you need a quick answer or a deeper understanding of the solution.
Learn more about us →Popular Calculators
Browse our most-used calculators to tackle any challenge.
Home Addition Cost Calculator
Estimate room addition costs per square foot with breakdowns for foundation, framing, roofing, electrical, plumbing, HVAC, and permits. Supports single and two-story additions.
Asphalt Calculator
Use our free asphalt calculator to estimate how many tons of asphalt you need. Enter length, width, and depth to get instant results.
Asphalt Cost Calculator
Estimate the total cost of your asphalt project. Enter dimensions and price per ton to calculate materials needed and total cost.
Asphalt Square Yards to Tons Calculator
Convert asphalt square yards to tons. Enter area in square yards and depth in inches to calculate the tons of asphalt needed.
Asphalt Tons to Cubic Yards Calculator
Convert between asphalt tons and cubic yards instantly. Free online converter using standard asphalt density of 1.4 tons per cubic yard.
Basement Waterproofing Cost Calculator
Calculate the cost of basement waterproofing based on perimeter and method. Compare interior sealant, exterior waterproofing, and French drain systems with cost breakdowns.
Bathroom Remodel Cost Calculator
Calculate the estimated cost of your bathroom remodel based on size, quality tier, and scope. Get cost breakdowns for fixtures, labor, and materials.
Bay Window Cost Calculator
Calculate the cost of bay, bow, and garden windows including materials and installation. Compare vinyl, wood, and fiberglass options for accurate budgeting.
Board Foot Calculator
Calculate board feet for any lumber size. Enter thickness, width, and length to get board feet, total for multiple pieces, and estimated cost.
Cinder Block Calculator
Calculate how many cinder blocks you need for your wall. Estimates blocks, mortar bags, and fill volume. Supports 8×8×16, 6×8×16, and 12×8×16 blocks.
Construction Cost Calculator
Estimate construction costs for houses, garages, and additions. Compare economy, standard, custom, and luxury quality levels with detailed cost breakdowns.
Deck Joist Calculator
Calculate how many joists you need for your deck based on length, spacing, and joist size. Get total linear feet and estimated lumber cost for pressure-treated lumber.
Drywall Calculator
Calculate how many drywall sheets you need based on wall dimensions and room count. Includes waste allowance, screws, joint compound, and cost estimates for standard sheet sizes.
Fence Calculator
Calculate how many fence posts, rails, pickets, and concrete bags you need. Supports picket, chain link, and privacy fence styles.
Gambrel Roof Calculator
Calculate gambrel roof rafter lengths, angles, and roof area. Free online gambrel roof truss calculator for barn-style roofs.
Gutter Calculator
Calculate the right gutter size and number of downspouts for your roof. Based on IPC standards. Supports 5-inch and 6-inch K-style gutters.
Insulation Calculator
Calculate how much insulation you need for walls, attic, or basement. Supports fiberglass batt, blown-in cellulose, and rigid foam board with R-value based thickness and cost estimates.
Landscape Cost Calculator
Estimate the cost of your landscaping project based on area and project type. Get low, mid, and high cost ranges for basic lawn, standard landscape, and premium hardscape projects.
Loam Calculator - Cubic Yards, Tons & Cost Estimate
Free loam calculator to estimate cubic yards, tons, and cost for your project. Enter length, width, and depth for instant results with delivery pricing.
Mold Remediation Cost Calculator
Calculate the cost of professional mold remediation based on affected area, severity, and location. Get detailed cost breakdowns for testing, removal, and repairs.
Paint Cost Calculator
Calculate how much paint you need and what it will cost based on wall area, number of coats, and paint quality. Supports economy, standard, and premium paint tiers.
Pea Gravel Calculator
Use our free pea gravel calculator to estimate how much pea gravel you need in cubic yards, tons, pounds, or 50lb bags. Get coverage per ton at any depth.
Pea Gravel Cost Calculator
Calculate the total cost of pea gravel for your project. Enter quantity and price per unit to get cost per cubic yard, cost per ton, and total cost.
Pond Volume Calculator
Calculate how many gallons of water your pond holds. Supports rectangular, circular, and irregular shapes with sloping sides. Get instant volume results.
Pool Gallons Calculator
Calculate how many gallons of water your pool holds. Supports rectangular, circular, and oval pool shapes. Enter dimensions for instant results.
Ramp Calculator
Calculate ramp length, angle, surface area, and concrete volume for any slope ratio. Supports ADA 1:12, residential, and custom slope ratios.
River Rock Calculator
Calculate how much river rock you need in cubic yards, tons, or by coverage area. Estimate costs per ton, per cubic yard, and for delivery.
Roof Pitch Calculator
Calculate roof pitch, angle, and multiplier factor. Free online roof pitch calculator with chart for common roof slopes.
Roof Pitch Ratios
Calculate roof pitch angle and multiplier factor for any pitch ratio. Reference chart for common roof slopes from 1/12 to 12/12.
Sand Calculator
Use our free sand calculator to estimate how much sand you need in cubic yards, tons, and pounds. Enter dimensions and get instant results with cost estimate.
Siding Calculator
Calculate how much siding you need for your project. Free siding calculator for James Hardie, vinyl, and wood siding materials.
Siding Cost Calculator
Estimate the cost of siding replacement. Compare costs for vinyl, Hardie board, cedar, metal, and stucco siding materials.
Siding Square Footage Calculator
Calculate the exact square footage of siding needed. Measure each wall and subtract openings for doors and windows.
Sod Calculator
Use our free sod calculator to estimate how much sod you need. Enter length and width to calculate pallets, rolls, pieces, and weight for your lawn project.
Sod Cost Calculator
Calculate the total cost of sod for your project. Enter your area and price per pallet to estimate pallets needed, total cost, and cost per square foot.
Spray Foam Cost Calculator
Estimate the cost of spray foam insulation based on area, thickness, and foam type. Compare open cell vs closed cell spray foam pricing per board foot.
Stair Calculator
Free stair calculator to determine the number of steps, riser height, going, and stair angle. Enter total rise and run for instant results.
Swimming Pool Cost Calculator
Estimate the cost of installing a swimming pool. Compare inground concrete, fiberglass, and above ground pools with low/mid/high budget ranges and monthly maintenance costs.
Topsoil Calculator
Use our free topsoil calculator to estimate how much topsoil you need in cubic yards, tons, pounds, and 40lb bags. Enter dimensions for instant results.