Concrete Volume Calculator
Cubic yards or meters plus bags of cement
Cubic Yards
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Cubic Meters
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60lb bags
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📚 Learn more — how it works, FAQ & guide Click to expand
Learn more — how it works, FAQ & guide
Click to expand
Free concrete volume calculator
Calculate concrete volume for slabs, footers, columns, walls. Includes waste factor + bag count.
How to use this tool
- 1
Pick shape
Slab, footer, column, wall.
- 2
Enter dimensions + units
Feet or meters.
- 3
Get volume + bags
Cubic yards/meters + number of 60lb/80lb bags, or pre-mix.
Frequently Asked Questions
How many bags per yard?
A 60lb bag yields ~0.45 cubic feet. A 80lb bag ~0.6 cubic feet. 1 cubic yard = 27 cubic feet, so 45 × 60lb bags OR 60 × 80lb bags per yard.
Always add 10% waste
We add 10% extra by default. Concrete overage is cheaper than a second pour.
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100% Privacy. This tool runs entirely in your browser. Your data is never uploaded to any server.