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.

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 Type | Weight per Cubic Yard | Weight per Cubic Foot | Common Uses |
|---|---|---|---|
| Standard Concrete | 2.5 tons | 150 lbs | Driveways, sidewalks |
| Reinforced Concrete | 2.7-3.0 tons | 160-180 lbs | Foundations, structures |
| Lightweight Concrete | 1.5-2.0 tons | 90-120 lbs | Decorative elements |
| Concrete with Rebar | 2.6-2.8 tons | 155-170 lbs | Structural 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
- Measure Dimensions: Length × Width × Thickness
- Convert Units: Ensure all measurements are in feet
- Calculate Volume: Multiply dimensions to get cubic feet
- Convert to Cubic Yards: Divide by 27
- Calculate Weight: Multiply by 2.5 tons per cubic yard
- Add Waste Factor: Add 10-20% for irregular shapes
- 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
- Break Down Large Pieces: Smaller pieces are easier to load and transport
- Separate Materials: Remove rebar and other metals for recycling
- Consider Recycling: Many concrete materials can be recycled
- Plan Multiple Pickups: For large projects, consider staged disposal
- 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.
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