Concrete Calculator

Calculate concrete volume, bags needed, and cost for your project.

Enter the length of the slab.
Enter the width of the slab.
Enter the depth (e.g., 4 in for a typical slab).
Enter the cost per cubic yard, if known.
Enter the cost per 80-lb bag, if known.
Calculate the concrete volume, bags, and cost.
Reset all inputs to start over.

Calculation Results

Volume: 0 yd³

80-lb Bags: 0

Cost (by volume): $0

Cost (by bags): $0

Volume (yd³) 80-lb Bags Cost (by volume, $) Cost (by bags, $)
0 0 0 0

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