Concrete Bags Calculator
Calculate how many bags of concrete you need for your project. Determine concrete requirements based on dimensions, bag size, and project type.
Step 1: Project Dimensions
Understanding Concrete Depth
Typical concrete projects: 4″ for slabs, 8-12″ for footings, and 6-8″ for driveways. Always check local building codes for specific requirements.
Step 2: Concrete Bags
About Concrete Bags
A 60 lb bag typically yields 0.45 cubic feet of concrete. An 80 lb bag yields about 0.6 cubic feet. Always buy 5-10% extra for waste, spillage, and over-excavation.
Concrete Bags Calculation Results
Total Bags Needed
Bag Size Comparison
| Bag Size | Bags Needed | Total Cost | Cost with Waste |
|---|
Cost Breakdown by Project Type
Concrete Formula
Cubic Yards = (Length × Width × Depth) ÷ 324
To calculate concrete needed: Multiply length (ft) × width (ft) × depth (in). Divide by 324 to get cubic yards. Multiply by 27 to get cubic feet.
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