Concrete Calculator Yards
Calculate concrete cubic yards for your construction project. Perfect for ordering ready-mix concrete.
1. Enter Dimensions
All measurements will be converted to cubic yards.
2. Results
Your concrete requirements in cubic yards.
Enter dimensions and click calculate to see results.
💡 Pro Tips
- • Add 10% extra for waste and overage
- • Most concrete trucks hold 10 cubic yards
- • Order concrete in 0.5 yard increments
- • Consider weather conditions for curing
How to Calculate Concrete in Cubic Yards
Understanding Cubic Yards
A cubic yard is the standard unit for ordering ready-mix concrete. One cubic yard equals 27 cubic feet, which is approximately the amount of concrete that fits in a standard concrete truck.
Basic Formula
For rectangular shapes (slabs, foundations, walls):
Cubic Yards = (Length × Width × Thickness) ÷ 27
For Cylindrical Shapes
For columns and cylindrical footings:
Cubic Yards = (π × Radius² × Height) ÷ 27
Common Thicknesses
- Driveways: 4-6 inches
- Patios: 4 inches
- Sidewalks: 4 inches
- Foundations: 8-12 inches
- Walls: 6-8 inches
Frequently Asked Questions
How do I calculate concrete cubic yards?
Use our cubic yards calculator by entering the length, width, and thickness of your project. The calculator will automatically convert to cubic yards and provide material estimates.
How many cubic yards does a concrete truck hold?
Most concrete trucks can hold 10 cubic yards of concrete. For large projects, multiple truck loads may be required.
What's the difference between cubic feet and cubic yards?
1 cubic yard equals 27 cubic feet. Cubic yards are the standard unit for ordering ready-mix concrete from suppliers.
How much concrete for a 20x20 slab?
For a 20x20 slab with 4-inch thickness: 20 × 20 × (4/12) = 133.33 cubic feet = 4.94 cubic yards. Add 10% waste = 5.43 cubic yards.
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