What type of structure are you pouring? Select a shape below:
Slabs, Square Footings, or Walls
Hole, Column, or Round Footing
Circular Slab or Tube
Curb and Gutter Barrier
Concrete Stairs
If using pre-mixed concrete with density of 2,130 kg/m³ or 133 lbs/ft³*:
Weight needed
Using 60-lb bags
Using 80-lb bags
* Different types of concrete can have very different densities.
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Created & Written By
InterCalculator Editorial Team
This calculator was created by the InterCalculator Editorial Team, led by Haris Farooq. Our team specializes in formula research, calculator logic, and technical development, ensuring each tool is accurate, fast, and easy to use.
Before publishing, every calculator goes through the InterCalculator Accuracy Review Process. We verify formulas against trusted industry sources and test results across multiple real-world scenarios to ensure consistency. All calculations are reviewed by an experienced subject-matter expert to confirm accuracy, clarity, and reliability.
