Construction Calculators
Free estimation tools for DIY homeowners and building professionals. Every calculator includes a detailed guide that explains the formulas, waste factors, and best practices.
Read our guides →Use these calculators to estimate concrete, lumber, drywall, paint, insulation, roofing, and more. Not sure where to start? Read a construction guide first to understand the process, then come back here to run the numbers for your project.
Materials
Calculate quantities for standard construction materials.
Concrete Mix Calculator
Calculate bags of concrete mix, cement, sand, and gravel.
Brick & Mortar Calculator
Estimate bricks and mortar required for a wall.
Paint Coverage Calculator
Calculate gallons of paint needed for interior/exterior walls.
Tile & Flooring Calculator
Estimate tiles or flooring planks and box requirements.
Lumber & Wood Calculator
Calculate board feet and total lumber piece counts.
Drywall & Sheetrock Calculator
Estimate drywall sheets, joint compound, and tape needed for walls and ceilings.
Plaster Calculator
Determine plaster and water required for finishing walls.
Attic & Wall Insulation
Calculate net insulation area and required thickness for optimal R-Value.
Measurements
Tools for determining distances, square footage, and volumes.
Roof Pitch Calculator
Determine roof pitch, angle, rafter length, and area.
Area & Perimeter Calculator
Calculate area and perimeter for various shapes.
Staircase Calculator
Find rise, run, stringer length, and total steps.
Wall Square Footage
Calculate wall area excluding doors and windows.
Foundation Calculator
Estimate concrete required for footings and foundations.
Room Volume Calculator
Determine total cubic volume of a given room space.
Cost Estimators
Financial estimators for labor, materials, and overall budgets.
Construction Cost
High-level cost estimator for new builds.
Material Cost Calculator
Estimate total material costs based on unit pricing.
Labor Cost Estimator
Calculate labor costs based on hourly rates and time.
Paint Cost Calculator
Estimate total spend for interior and exterior painting.
Solar Panel Calculator
Estimate recommended solar system size, panel count, net costs, tax credits, and payback ROI.
Foundation Repair Cost Calculator
Estimate costs for crack repair, push piers, mudjacking, wall stabilization, and waterproofing.
Structural
Calculators for structural integrity and foundational materials.
Sand & Gravel Calculator
Calculate tons or cubic yards of aggregate base.
Steel & Rebar Calculator
Estimate length and weight of rebar grids.
Concrete Slab Calculator
Volume and material calculations for flat slabs.
Fence Material Calculator
Estimate posts, rails, and pickets for a fence run.