Construction Calculators
Free calculators for estimating concrete volume, block counts, drywall sheets, gravel quantities, flooring area, paint gallons, deck surface area, and paver quantities.
Available calculators
Concrete Calculator
Estimate concrete volume and bag quantities for rectangular slabs.
Concrete Slab Calculator
Calculate slab cubic feet, cubic yards, and bag estimates with waste.
Concrete Bag Calculator
Convert required concrete volume into 40 lb, 60 lb, and 80 lb bag counts.
Concrete Block Calculator
Estimate standard 8x8x16 concrete blocks for wall square footage.
Drywall Calculator
Estimate drywall sheets from wall and ceiling area with waste.
Gravel Calculator
Calculate gravel cubic yards and an estimated tonnage for a set depth.
Flooring Calculator
Estimate base and waste-adjusted square footage for identical rooms.
Paint Calculator
Estimate whole gallons from paintable area, coats, and coverage.
Deck Calculator
Calculate deck surface square footage with an optional waste allowance.
Paver Calculator
Estimate base and waste-adjusted paver quantities from area and paver size.