Free Construction Calculators for Engineers, Contractors & Builders.
Calculate concrete, cement, bricks, roofing, flooring, excavation, steel, earthwork, landscaping, and other construction estimates using professional engineering formulas.
Featured Categories
Material Calculators
Calculate quantities for concrete, aggregates, cement, asphalt, soil, mortar, and more.
Masonry Calculators
Calculate brick, block, mortar, paver, and retaining wall material requirements.
Flooring Calculators
Calculate flooring, tile, carpet, drywall, wallpaper, and paint material requirements.
Roofing Calculators
Calculate roof pitch, area, shingles, gutters, and roofing material requirements.
Popular Calculators
Aggregate & Gravel Calculator
Calculate aggregate, gravel, and crushed stone quantities for driveways, foundations, drainage, and landscaping.
Area Calculator
Calculate area of squares, rectangles, circles, and irregular shapes.
Asphalt Calculator
Calculate asphalt area, volume, tonnage, and project cost for paving projects.
Backfill Calculator
Calculate compacted backfill, loose fill volume, truckloads, and project cost.
Engineered for absolute accuracy.
Built using industry-standard engineering and construction formulas.
No registration required. Get instant calculations in seconds.
Supports international unit systems for professionals worldwide.
Estimate quantities, costs, and waste before purchasing materials.
Smart calculators for professional builders.
Get instant, accurate estimations for concrete, masonry, roofing, and structural engineering. Built for contractors, builders, and serious DIYers.