Concrete Slab Calculator
Calculate concrete needed for any slab project. Our free tool provides accurate estimates for volume, materials, and costs.
Feet, inches, yards
Dimensions
ft
ft
in
Add 10% extra for waste, spills, and uneven surfaces
Pro Tips
- →Most residential slabs need 4-6 inches thickness
- →Add 10% extra concrete for waste
- →Include wire mesh or rebar for reinforcement
- →Compact gravel base to 4-6 inches
- →Use control joints to manage cracking
Technical Result
—YD³
Bags (80lb)—
Total Volume—FT³
Estimated Weight—LBS
Cubic Meters—M³
For general step-by-step instructions, read our complete How To Calculate Concrete and How Thick Should Concrete Be.