Calculate the exact density, volume, and structural weight of your concrete project with real-time 3D visualization.
Concrete Density
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Total Volume Required
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Estimated Structural Weight
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Weight per Square Foot / Meter
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Total Material Unit Requirements
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With 10% Waste Weight
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- Select your preferred Unit System (Imperial or Metric).
- Choose the Shape Profile of your concrete pour (Slab or Cylinder).
- Enter the physical Dimensions of the shape. Watch the 3D model update in real-time.
- Select the Concrete Type or enter a custom density.
- Review the Results below for volume, weight, and bag requirements.
- Click Download PDF Report to save a professional engineering summary.
- Volume (Slab): Length × Width × Depth
- Volume (Cylinder): π × (Diameter / 2)² × Height
- Total Weight: Total Volume × Concrete Density
- Weight per Area: Total Weight ÷ (Length × Width) or π × (Diameter / 2)²
- Bag Requirements: Total Weight ÷ Weight per Bag (80 lbs / 36 kg)
- Waste Margin: Total Weight × 1.10
- Normal Weight: 150 lb/ft³ (2,400 kg/m³) - Standard residential/commercial.
- Lightweight: 115 lb/ft³ (1,840 kg/m³) - Used to reduce structural dead load.
- Reinforced: 156 lb/ft³ (2,500 kg/m³) - Accounts for steel rebar weight.
- High-Density: 180 lb/ft³ (2,880 kg/m³) - Used for radiation shielding or counterweights.