Concrete Yard Calculator
Convert concrete volume from cubic feet to cubic yards for ready-mix concrete ordering.
Formula & Explanation
To convert cubic feet to cubic yards, use the conversion factor: 1 cubic yard = 27 cubic feet Therefore: Volume (cu yd) = Volume (cu ft) ÷ 27 To add waste percentage: Volume with Waste (cu ft) = Volume (cu ft) × (1 + Waste% / 100) Then convert the adjusted volume to cubic yards: Volume with Waste (cu yd) = Volume with Waste (cu ft) ÷ 27
Assumptions
- •The input volume is in cubic feet (already calculated from your project)
- •The conversion factor 27 cu ft = 1 cu yd is exact
- •A 10% waste allowance is typical for ready-mix concrete; adjust based on site conditions
- •Ready-mix suppliers typically charge per cubic yard with minimum order requirements (usually 2-4 cu yd)
Example Calculation
A project requiring 100 cubic feet of concrete equals 3.7 cubic yards. With 10% waste, order 4.07 cubic yards (approximately 4.1 cu yd).
Inputs
Results
Common Cubic Feet to Cubic Yards Conversions
| cuft | cuyd | with_10_waste_cuyd |
|---|---|---|
| 27 | 1.0 | 1.1 |
| 54 | 2.0 | 2.2 |
| 100 | 3.7 | 4.07 |
| 150 | 5.6 | 6.15 |
| 270 | 10.0 | 11.0 |
Frequently Asked Questions
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