How to use it
- Enter the length in feet.
- Enter the width in feet.
- Enter the depth in inches.
- Read the cubic yards, tons, and cubic feet results.
Use this Gravel Calculator to turn your project dimensions into the exact amount of material you must order. By entering length, width, and depth, the tool converts the measurements to cubic feet, then to cubic yards (27 ft³ per yd³). It also multiplies cubic yards by 1.4 tons to give an approximate tonnage, helping you match supplier quotes. Knowing the volume prevents over‑ordering, which saves money and reduces waste, while under‑ordering can delay a driveway or patio build. The results appear instantly: cubic yards for ordering, tons for weight‑based delivery fees, and cubic feet for quick on‑site checks. No extra math required—just plug the numbers and use the three values to plan, budget, and place a precise order. You can also adjust the depth to account for compaction or a base layer, and the calculator will update all three outputs instantly.
Pro tips
- Add 5‑10% extra for compaction and spillage.
- Round up to the nearest 0.1 yd³ to avoid shortfalls.
- Order material by the ton if the supplier charges by weight.
- Double‑check that depth is entered in inches, not feet.
Real-life examples
- A homeowner planning a 12 ft × 8 ft patio with a 2‑inch gravel base.
- A contractor estimating gravel for a 200‑ft driveway 4 in deep.
- A landscaper needing material for a 500 sq ft garden path 1.5 in thick.
Case study
Mike needed 12 ft × 10 ft patio gravel 2 in deep. Using the calculator, he saw 0.74 yd³, about 1.0 ton. He ordered 1 ton, saved $30 on excess material, and completed the patio on schedule.