How to use it
- Enter the cubic yards of concrete you have.
- Enter the desired slab thickness in inches.
- Press Calculate to see the square footage.
What it does Enter the volume of concrete you have in cubic yards and the slab thickness you plan to pour. The calculator converts the volume to cubic feet (27 ft³ per yard) and divides by the thickness in feet, giving the total square footage you can cover.
Why it matters Knowing the square footage helps you order the right amount of material, avoid costly over‑orders, and keep projects on schedule.
How to read the result The number displayed is the maximum area you can fill at the chosen thickness. If you need a larger area, lower the thickness or order more yards. Remember to add a waste factor for spills and uneven subgrade.
Use it when planning foundations, driveways, patios, or any flat pour where you need to match material volume to surface area. The result updates instantly as you adjust either input, so you can experiment with different thicknesses to find the most cost‑effective solution.
Pro tips
- Add 5‑10% extra for waste and spillage.
- Round up to the nearest whole yard to avoid shortfalls.
- Order slightly more if you anticipate a thicker edge or a slope.
- Double‑check thickness units; inches must be entered, not feet.
Real-life examples
- A homeowner estimating concrete for a new patio slab.
- A contractor quoting material for a 4‑inch thick driveway.
- A DIYer planning a garden walkway and needing exact area coverage.
Case study
Mike needed a 200‑sq‑ft patio at 4" thickness. Using the calculator, he entered 1.5 cubic yards and saw it covered exactly 200 sq ft, preventing an over‑order and saving $150.