Concrete Calculator
Calculate how much concrete you need for slabs, footings, and columns. Enter dimensions to get cubic yards and bags of pre-mix concrete required.
- 100% free
- No signup
- Runs in your browser
Used 26.9K times today
How to Use Concrete Calculator
- 1
Choose shape
Select slab, footing, or column to match your project type.
- 2
Enter dimensions
Input length, width, and depth (or diameter for columns) in feet and inches.
- 3
Get your result
See the volume in cubic yards and the equivalent number of 60 lb and 80 lb pre-mix bags.
Frequently Asked Questions
Does it account for waste?
What sizes of bags are shown?
Embed This Tool
Add this tool to your website for free. Just copy and paste the code below:
<iframe src="https://utilko.com/embed/concrete-calculator/" width="100%" height="500" frameborder="0" title="Concrete Calculator"></iframe> About Concrete Calculator
The Concrete Calculator on Utilko computes the exact volume of concrete needed for slabs, footings, and columns — then converts that volume into the number of pre-mix bags you need to buy at the hardware store. Includes a 10% waste factor so you never run short on a pour.
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