How to use it
- Enter the gravel amount in cubic yards.
- Enter the desired depth in inches.
- Click Calculate to see the square footage.
What it does – This calculator turns the volume of gravel you have (cubic yards) and the depth you need (inches) into the exact area you can spread (square feet). Knowing that 1 cubic yard equals 27 cubic feet and that 1 inch of material over 1 sq ft uses 1⁄12 cubic foot, the tool applies the 324 conversion factor automatically. The result tells you how many square feet will be covered at the depth you choose, so you can order the right amount, avoid costly over‑orders, and plan your project timeline. Read the number as the total surface area you can fill; if you need a larger area, increase the gravel volume or reduce the depth. You can also round up to the nearest whole square foot for easier material ordering, and compare multiple depth scenarios side by side.
Pro tips
- Add a 5‑10% waste allowance to cover compaction and spillage.
- Round the result up to the nearest whole square foot for ordering simplicity.
- If you change depth, recalculate – the area changes proportionally.
- Double‑check units: input cubic yards and inches, not feet or meters.
Real-life examples
- A homeowner planning a new driveway wants to know how much area 3 cubic yards of gravel will cover at 2 inches depth.
- A contractor estimating material for a garden path needs the square footage per inch of depth to price the job accurately.
- A landscaper ordering bulk gravel for a patio must match the area to avoid over‑ordering and extra cost.
Case study
Sam had 4 cubic yards of gravel and needed a 3‑inch base for his patio. Using the calculator, he saw he could cover 432 sq ft, matching his design exactly and saving a costly reorder.