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Square Feet and Depth to Cubic Yards Calculator — result sheet
Convert an area in square feet and a material depth in inches into cubic yards with waste.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: base cubic yards=area×depth/12/27; order quantity=base×(1+waste).
Area times depth gives a volume; the conversion divides cubic feet by 27. The waste input keeps overage visible for spreading, settling, cutting, or uneven subgrade.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Area (ft²) — minimum 1.0E-6; maximum 100000000
- Depth (in) — minimum 1.0E-6; maximum 10000
- Waste allowance (%) — minimum 0; maximum 100
Worked example
| Input | Value |
|---|---|
| Area (ft²) | 500 |
| Depth (in) | 3 |
| Waste allowance (%) | 10 |
Base volume≈4.6296 yd³; order estimate≈5.0926 yd³.
Assumptions and limits
- Area is in square feet and depth is in inches.
- A cubic yard is 27 cubic feet.
- The material is assumed to be distributed at the entered average depth.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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