Construction calculations,
made simple.
Fast, practical calculators for architects, builders, contractors and homeowners. Estimate materials and quantities without complicated spreadsheets.
Construction calculators
50 practical tools for estimating, planning and construction.
Concrete Calculator
Estimate concrete volume for slabs, footings and other projects.
Brick Calculator
Estimate the number of bricks required for walls and masonry work.
Tile Calculator
Calculate tile quantities and allow for practical material waste.
Paint Calculator
Estimate paint quantity from wall area and number of coats.
Rebar Calculator
Estimate reinforcing steel quantities for concrete construction.
Cement Calculator
Estimate cement quantities for common construction work.
Flooring Calculator
Estimate flooring material from room dimensions and waste.
Stair Calculator
Calculate stair rise, run and basic stair dimensions.
Roof Pitch Calculator
Calculate roof pitch and slope from rise and run.
Gravel Calculator
Estimate gravel volume for construction and landscaping work.
Sand Calculator
Estimate sand quantities for construction and site work.
Mortar Calculator
Estimate mortar quantities for brick and block construction.
Concrete Block Calculator
Estimate concrete blocks required for masonry walls.
Wall Area Calculator
Calculate wall surface area for finishing and material estimates.
Roofing Calculator
Estimate roof area and basic roofing material quantities.
Rafter Length Calculator
Calculate rafter length from roof rise and horizontal run.
Drywall Calculator
Estimate drywall sheets required for walls and ceilings.
Paver Calculator
Estimate paver quantities for patios, paths and paved areas.
Asphalt Calculator
Estimate asphalt quantities for roads, driveways and paved areas.
Steel Weight Calculator
Estimate steel weight from dimensions and section information.
Concrete Column Calculator
Calculate concrete volume required for columns.
Concrete Stairs Calculator
Estimate concrete volume required for stair construction.
Grout Calculator
Estimate grout quantities for tile and masonry work.
Thinset Calculator
Estimate thinset mortar required for tile installation.
Concrete Weight Calculator
Estimate concrete weight from volume and density.
Cubic Yard Calculator
Convert project dimensions into cubic yards.
Square Footage Calculator
Calculate floor, wall and surface area quickly.
Retaining Wall Calculator
Estimate materials and dimensions for retaining wall projects.
Ramp Calculator
Calculate ramp slope, rise and required horizontal length.
Floor Area Ratio Calculator
Calculate floor area ratio from building and site areas.
Roof Truss Calculator
Calculate basic roof truss geometry and dimensions.
Roof Shingle Calculator
Estimate roof shingles required from roof area.
Metal Roof Cost Calculator
Estimate preliminary material cost for metal roofing.
Framing Calculator
Estimate framing members for walls and basic construction.
Plywood Calculator
Estimate plywood sheets required for a project area.
Insulation Calculator
Estimate insulation quantities for walls and building surfaces.
Beam Load Calculator
Estimate basic loads acting on structural beams.
Beam Deflection Calculator
Calculate preliminary beam deflection from load and span.
Bending Stress Calculator
Calculate bending stress for basic structural analysis.
Floor Joist Calculator
Estimate floor joist layout and basic span information.
Wood Beam Span Calculator
Estimate preliminary span information for wood beams.
Pipe Volume Calculator
Calculate internal liquid volume for pipes.
Tank Volume Calculator
Calculate storage volume for common tank shapes.
AC Tonnage Calculator
Estimate preliminary air-conditioning tonnage requirements.
Air Conditioner BTU Calculator
Estimate preliminary air-conditioner BTU requirements.
CFM Calculator
Calculate airflow in cubic feet per minute.
Heat Loss Calculator
Estimate preliminary building heat loss.
Fence Calculator
Estimate fence posts, panels and project quantities.
Decking Calculator
Estimate decking boards and material quantities.
Elevation Grade / Slope Calculator
Calculate elevation difference, grade and slope percentage.
Built for quick project decisions.
Straightforward tools focused on the numbers you actually need during planning and construction.
Fast calculations
Enter your dimensions and get useful project quantities without complicated spreadsheets.
Practical outputs
Results are presented clearly so they can be understood and used on real construction projects.
Free to use
Access calculators directly without creating an account or installing additional software.
Start with your next calculation.
Choose from 50 construction calculators, enter your project dimensions and get a clear estimate in seconds.