Concrete Calculator
Calculate the exact amount of concrete needed for your project. This free concrete calculator helps you determine cubic yards, bags of concrete mix, and total material requirements for slabs, footings, columns, and foundations.
Professional Concrete Calculator
Industry-standard material calculations based on ACI, IBC/IRC, and DOT specifications
Project Type
Dimensions
Specifications
Residential driveways, garage floors, standard slabs
Enter your project dimensions to see results
About This Calculator
Industry Standards
- ACI 318 structural concrete code
- International Building Code (IBC/IRC)
- DOT specifications for driveways
- ASTM material standards
Key Specifications
- 60 lb bag yields 0.45 cu ft
- 80 lb bag yields 0.60 cu ft
- 1 cubic yard = 27 cubic feet
- Standard waste factor: 5-10%
Professional Note: This calculator provides estimates based on industry standards. Always consult local building codes, obtain necessary permits, and consider hiring a licensed contractor for structural projects. Actual material requirements may vary based on site conditions, formwork, and installation methods.
Want to Learn More?
ACI 318 standards, bag yields (60lb/80lb), ready-mix specifications, and IRC/IBC code requirements for slabs, footings, and walls.
Read the Concrete Calculation GuideHow to Use This Calculator
- Enter dimensions: Input the length, width, and thickness of your concrete pour.
- Select project type: Choose from slab, footing, column, or stairs.
- Review results: See cubic yards needed and number of bags required.
- Add waste factor: The calculator includes a 10% waste factor.
Understanding Concrete Measurements
Concrete is measured in cubic yards (27 cubic feet). A typical 80-lb bag covers approximately 0.6 cubic feet. For large projects, ready-mix concrete is more economical than bagged mix.