Gravel Calculator
Estimate the cubic yards and tons of gravel needed for a driveway, path or base.
- Gravel needed3.46 tons
- Volume2.47 cubic yards
- Volume66.67 cubic feet
- Approx. weight6,914 lb
How to use
- Enter the length and width of the area in feet.
- Enter the gravel depth in inches (2-4" is typical).
- Read the cubic yards and approximate tons you need.
About this calculator
This gravel calculator finds the volume of your area and converts it to cubic yards and to tons. Gravel and crushed stone weigh roughly 1.4 tons per cubic yard (about 2,800 lb), though this varies a little with stone size and moisture. Suppliers usually sell gravel by the ton, so the tonnage figure is what you will order. For a driveway, a 4 inch depth over a compacted base is common; for a decorative path, 2 inches is usually enough.
🧮 How it's calculated
- 1Step 1 — Convert depth to feet: Depth (ft) = Depth (in) ÷ 12
- 2Step 2 — Volume in cubic feet: Volume (ft³) = Length × Width × Depth (ft)
- 3Step 3 — Convert to cubic yards: Cubic yards = Volume (ft³) ÷ 27
- 4Step 4 — Estimate weight: Tons = Cubic yards × 1.4 (gravel ≈ 2,800 lb/yd³)
Cubic yards = (Length ft x Width ft x Depth ft) / 27; Tons = Cubic yards x 1.4.
Frequently asked questions
How many tons of gravel are in a cubic yard?+
About 1.4 tons (roughly 2,800 lb) per cubic yard for typical gravel and crushed stone, varying slightly with stone type and moisture.
How deep should gravel be for a driveway?+
About 4 inches over a well-compacted sub-base is common for residential driveways. Decorative paths can use 2 inches.