Calculate cubic yards of concrete needed for slabs and footings
Our concrete calculator helps you determine exactly how much concrete you need for slabs, footings, posts, and other projects. Whether you're pouring a patio, sidewalk, driveway, or foundation, this tool calculates cubic yards needed based on your project dimensions.
Ordering the right amount of concrete is critical - too little means a second delivery charge and potential cold joints, while too much wastes money. The calculator converts your measurements to cubic yards, which is how ready-mix concrete is sold and delivered.
This tool is designed for DIY homeowners planning concrete projects, contractors preparing estimates, and anyone asking "how much concrete do I need for a 10x10 slab?" The calculator also shows equivalent 80lb bags for smaller projects where bagged concrete may be more practical.
Follow these steps to calculate your concrete needs: