Concrete Calculators
Slabs, footings, blocks and rebar.
Concrete projects are usually measured differently depending on the shape being poured. A flat slab (patio, driveway, sidewalk) uses length × width × thickness; a footing or column uses the same math but treats height and diameter separately; a block wall is counted per-unit rather than by volume. Pick the calculator that matches the actual shape you’re pouring rather than converting manually — it avoids a common source of ordering errors.
Concrete Block Calculator
Estimate concrete blocks and mortar for a wall, minus openings.
Concrete Slab Calculator
Estimate concrete for a slab in cubic yards and pre-mixed bags.
Concrete Calculator
Estimate concrete for slabs, footings or columns in cubic yards.
Rebar Calculator
Estimate rebar bars and 20ft sticks for a slab grid layout.