CONCRETE8 min readJanuary 27, 2025

Concrete Calculator: Calculate Volume, Weight & Quantity Needed

Use our free concrete calculator to estimate the volume and weight of concrete needed for your project. Calculate concrete requirements for slabs, footings, columns, stairs, curbs, and more. Supports multiple units and shapes.

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Concrete Debris Calculator - Calculate concrete waste volume and disposal costs

Concrete Calculator

Calculate the volume and weight of concrete needed for your project. Purchasing slightly more concrete than estimated can reduce the probability of having insufficient concrete.

About Concrete

Concrete is a material comprised of coarse aggregates (sand, gravel, crushed stone, and slag) bonded with cement. Cement is used to bind materials and hardens over time. While there are many types of cement, Portland cement is the most commonly used and is an ingredient in concrete, mortar, and plasters.

Concrete can be purchased in 60 or 80-pound bags, or delivered in large amounts by specialized concrete mixer trucks. Proper mixing is essential for the production of strong, uniform concrete.

The process of concrete hardening once it has been placed is called curing, and typically takes around four weeks to reach over 90% of its final strength.

Understanding Concrete Calculations

Whether you're planning a new construction project and need to calculate how much concrete to order, or you're removing existing concrete and need to estimate disposal costs, accurate calculations are essential for proper planning and budgeting.

How to Calculate Concrete Volume

Calculating concrete volume requires understanding the dimensions and thickness of the concrete structure. Our calculator supports multiple shapes including slabs, footings, columns, circular structures, curbs, and stairs:

Concrete Volume Calculation Formula

Volume = Length × Width × Thickness (in feet)

Cubic Yards = Volume ÷ 27

  • 1 cubic yard = 27 cubic feet
  • Convert inches to feet: Divide by 12 (e.g., 4" = 0.33 feet)
  • Example: 20' × 20' × 0.33' = 132 cubic feet ÷ 27 = 4.9 cubic yards

Common Concrete Structures and Their Calculations

Driveway Removal

  • • Average size: 20' × 20' × 4"
  • • Volume: 5 cubic yards
  • • Weight: ~12.5 tons
  • • Recommended: 20-yard dumpster
  • • Cost: $400-600

Sidewalk Removal

  • • Average size: 50' × 4' × 4"
  • • Volume: 2.5 cubic yards
  • • Weight: ~6.25 tons
  • • Recommended: 15-yard dumpster
  • • Cost: $300-500

Patio Removal

  • • Average size: 15' × 15' × 4"
  • • Volume: 3.3 cubic yards
  • • Weight: ~8.25 tons
  • • Recommended: 20-yard dumpster
  • • Cost: $400-600

Foundation Removal

  • • Average size: 30' × 40' × 8"
  • • Volume: 30 cubic yards
  • • Weight: ~75 tons
  • • Recommended: Multiple dumpsters
  • • Cost: $1,500-2,500

Concrete Weight Calculations

Understanding concrete weight is crucial for proper dumpster sizing and cost estimation:

Concrete TypeWeight per Cubic YardWeight per Cubic FootCommon Uses
Standard Concrete2.5 tons150 lbsDriveways, sidewalks
Reinforced Concrete2.7-3.0 tons160-180 lbsFoundations, structures
Lightweight Concrete1.5-2.0 tons90-120 lbsDecorative elements
Concrete with Rebar2.6-2.8 tons155-170 lbsStructural elements

dumpster sizes Requirements for Concrete Debris

Due to its weight, concrete debris requires careful dumpster sizing:

⚠️ Important Weight Considerations

  • Weight Limits: Concrete will likely reach weight limits before volume limits
  • Dumpster Sizing: You'll need larger dumpsters than volume suggests
  • Multiple Pickups: Large projects may require multiple dumpsters
  • Breaking Required: Large concrete pieces may need to be broken down
  • Special Equipment: May require heavy equipment for loading

Step-by-Step Concrete Debris Calculation

Calculation Process

  1. Measure Dimensions: Length × Width × Thickness
  2. Convert Units: Ensure all measurements are in feet
  3. Calculate Volume: Multiply dimensions to get cubic feet
  4. Convert to Cubic Yards: Divide by 27
  5. Calculate Weight: Multiply by 2.5 tons per cubic yard
  6. Add Waste Factor: Add 10-20% for irregular shapes
  7. Choose dumpster sizes: Based on weight capacity

Concrete Debris Disposal Cost Factors

Several factors influence concrete debris disposal costs:

  • Volume and Weight: Larger volumes and heavier loads cost more
  • Breaking Requirements: Large pieces may need to be broken down
  • Reinforcement Materials: Rebar and other materials affect weight
  • Location: Distance from disposal facilities affects pricing
  • Recycling Options: Some concrete can be recycled for reduced costs

Tips for Cost-Effective Concrete Debris Disposal

  1. Break Down Large Pieces: Smaller pieces are easier to load and transport
  2. Separate Materials: Remove rebar and other metals for recycling
  3. Consider Recycling: Many concrete materials can be recycled
  4. Plan Multiple Pickups: For large projects, consider staged disposal
  5. Optimize Loading: Distribute weight evenly in the dumpster

Concrete Recycling and Environmental Benefits

Concrete debris doesn't have to be wasted. Many concrete materials can be recycled:

  • Crushed Concrete: Can be used as base material for new construction
  • Concrete Aggregate: Recycled concrete can replace natural aggregates
  • Environmental Benefits: Reduces landfill waste and natural resource consumption
  • Cost Savings: Recycling may reduce disposal costs

Why Choose Icon Dumpsters for Concrete Debris Disposal?

Icon Dumpsters specializes in concrete debris disposal with:

  • Heavy-Duty Equipment: Dumpsters designed for heavy concrete loads
  • Experience: Years of experience handling concrete disposal projects
  • Recycling Partnerships: Connections with concrete recycling facilities
  • Accurate pricing: Transparent pricing with no hidden fees
  • Professional Service: Expert advice on concrete disposal requirements

Ready to Calculate Your Concrete Debris Disposal Costs?

Use our concrete debris calculator above to get an instant quote, or call us at (801) 918-6000for personalized assistance with your concrete debris disposal project.