Concrete Calculator
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Concrete for slabs, wall footings and post holes in cubic yards and cubic meters, plus how many 40, 60 or 80 lb or 25 kg premix bags to buy for the job. Web page: https://calcbright.com/concrete-calculator
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| qty | No | Quantity | |
| unit | No | Units | imperial |
| depth | No | Thickness (in) | |
| shape | No | Shape | slab |
| waste | No | Extra for waste / spillage (%) Many contractors add 5–10%. | |
| width | No | Width (ft) | |
| height | No | Height / depth (ft) | |
| length | No | Length (ft) | |
| diameter | No | Diameter (in) |