Concrete Slab Estimator
Estimate cubic yards and bag counts for rectangular concrete slabs.
Concrete & Cement
Slab, footing, column, mix, and bag calculators for US poured concrete — cubic yards and 60/80/90 lb bags.
Concrete Column Calculator
Find concrete volume for round or rectangular columns and piers.
Concrete Footing Calculator
Estimate concrete for continuous and pad footings by size.
Concrete Mix Ratio Calculator
Convert mix ratios into batch quantities for cement, sand, and aggregate.
Cement Bags Calculator
Estimate cement bag counts from mix volume and bag size.
Sidewalk Concrete Calculator
Estimate concrete for sidewalks and walkways by length and width.
Driveway Concrete Calculator
Estimate yards of concrete for residential driveways.
Patio Slab Calculator
Calculate concrete for outdoor patio slabs and seating pads.
Concrete Formwork Calculator
Estimate contact area of forms for walls, slabs, and columns.
Bag Yield Concrete Calculator
Convert bag yields into pour coverage for a given thickness.
Foundation Wall Concrete Calculator
Estimate concrete for poured foundation and basement walls.
Water-Cement Ratio Helper
Estimate water quantity from cement weight and target ratio.