Construction & Materials
Cubic Yards Calculator
Use the cubic yards calculator for concrete, mulch, gravel, soil, fill, and bulk material planning.
Cubic yards
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- Cubic feet
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- Estimated cost
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Student quick launch
Grade planning, algebra checks, and formulas students reach for most.
Study path
Use this calculator with
Follow these when you want the formula behind the answer, a short lesson, or nearby tools in the same topic.
What the cubic yards calculator solves
Use the cubic yards calculator for concrete, mulch, gravel, soil, fill, and bulk material planning.
Formula
How to use it
- Enter length and width in feet.
- Enter depth in inches.
- Divide cubic feet by 27 to get cubic yards.
How to read the answer
Bulk materials are often ordered by cubic yard, while small bags list cubic feet.
Common mistakes and edge cases
- Convert depth from inches to feet.
- Add compaction or waste where needed.
- Irregular shapes need separate sections.
Worked examples
Concrete slab volume
Cubic yards
1.481 cu yd
Mulch bed
Cubic yards
0.889 cu yd
Frequently asked questions
How many cubic feet are in a cubic yard?+
There are 27 cubic feet in one cubic yard.
Should I round up?+
Yes for ordering materials. This calculator shows the exact estimate before any supplier-specific rounding.
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Last updated: May 15, 2026