Concrete bag calculator

Estimate slab volume and how many concrete bags to buy, with editable bag yield, weight and waste. Your inputs stay on this device.

Currency

Round concrete footing

Material quantity only. This does not determine a safe footing size.

Metric / US customary

Diameter (m)Depth (m)Number of footings ()Bag yield (L)Price per package (USD)Waste % (%)

57 Bags · $0.00

Volume: 0.66 m³

V = π × (d / 2)² × h × n

How to use it

Enter the finished dimensions of the area.
Copy coverage, package size and price from the product you will actually buy.
Use the result as a planning estimate, then confirm field conditions and supplier guidance.