Concrete Calculator
Calculate concrete volume for slabs, footings, columns, stairs, and more
Slab, Square Footing, or Wall
Hole, Column, or Round Footing
Circular Slab or Tube
Curb and Gutter Barrier
Stairs
Material & Cost Options
About Concrete
- Concrete is a composite material of coarse aggregates bonded with cement
- Portland cement is the most common type used in concrete
- Concrete typically takes 4 weeks to reach 90% of its final strength
- Proper curing is essential for maximum strength
Typical Concrete Thickness
- Sidewalks: 4 inches
- Driveways: 4-6 inches
- Patios: 4 inches
- Foundations: 8-12 inches
- Industrial floors: 6-8 inches
Bag Coverage
- 40 lb bag: ~0.3 cu ft
- 60 lb bag: ~0.45 cu ft
- 80 lb bag: ~0.6 cu ft
- 1 cubic yard = 27 cubic feet
- 1 cubic meter = 1.308 cubic yards