Concrete Block Calculator
Count concrete blocks (CMU) for a wall from its length, height and openings. A 20 by 8 ft wall of 8×16 blocks needs 180 blocks before waste.
5 tools
Count concrete blocks (CMU) for a wall from its length, height and openings. A 20 by 8 ft wall of 8×16 blocks needs 180 blocks before waste.
Find the concrete for round form tubes from diameter, depth and count, in cubic yards, cubic feet and cubic metres, plus 60 lb and 80 lb bag counts.
Work out the concrete for round tube or square columns in yd³, m³ and ft³, with a waste allowance and the number of 60 lb and 80 lb premix bags.
Work out concrete volume for a slab, footing or round column in cubic yards or cubic metres, with a waste allowance and 60 lb or 80 lb bag counts.
Work out the concrete for a rectangular slab in cubic yards, cubic metres and 60 or 80 lb bags, with a waste allowance. A 10 × 10 ft slab at 4 in is 1.23 yd³.