Concrete Square Footage Calculator
Quickly convert square footage to concrete volume. Perfect for slab, patio, walkway, and floor projects.
Frequently Asked Questions
How do I convert square feet to cubic yards of concrete?
Multiply square feet × thickness in feet, then divide by 27. A 100 sq ft × 4 in slab = 100 × 0.333 / 27 = 1.23 cubic yards.
How many square feet does a yard of concrete cover?
One cubic yard covers about 81 square feet at 4 inches thick or 54 square feet at 6 inches thick.
How thick should concrete be for heavy equipment?
Heavy equipment slabs are 6–8 inches thick, reinforced with rebar or structural mesh.
Related Pages
Concrete Slab Calculator
Calculate concrete needed for a slab. Enter length, width, and thickness to get cubic yards, bags of pre-mix, and cost.
Concrete Cost Calculator
Estimate total concrete cost. Enter volume and local price per cubic yard to get project cost including delivery and labor.
Concrete Yard Calculator
Calculate how many cubic yards of concrete you need. Works for slabs, footings, columns, and custom shapes.
Concrete Footing Calculator
Calculate concrete needed for footings. Enter dimensions, depth, and quantity for accurate volume and bag estimate.
Concrete Column Calculator
Calculate concrete for round or square columns and posts. Enter diameter, side length, height, and quantity.
Concrete Stairs Calculator
Calculate concrete needed for stairs. Enter number of steps, riser height, tread depth, and width for exact volume.