Gravel Calculator - Volume & Tons Needed

  • Pea Gravel (~1.4 t/yd³)
  • Crushed Stone (~1.5 t/yd³)
  • River Rock (~1.65 t/yd³)
  • Sand (~1.35 t/yd³)
  • Topsoil (~1.2 t/yd³)
Results
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Estimate how much gravel, crushed stone, sand, or topsoil your project needs with our Gravel Calculator. Enter the area's length and width plus the desired depth in inches, and get the required volume in cubic yards and cubic feet along with the weight in tons.

The calculator supports the most common landscape materials, each with a typical bulk density: pea gravel, crushed stone, river rock, sand, and topsoil. Weight matters because suppliers usually sell gravel by the ton, while volume tells you how much space it will fill.

Typical depths: 2 inches for decorative coverage, 2-3 inches for walkways, and 4-6 inches for driveways. Remember to order about 5-10% extra — gravel compacts and the ground is rarely perfectly level, so the loose volume you spread is always more than the finished surface.

Formula
cu yd = L × W × D(in) ÷ 324 | tons = cu yd × density (t/yd³)

FAQ

How much gravel do I need?
Multiply length × width × depth (converted to feet), then divide by 27 for cubic yards. Our calculator does this instantly — just enter your area dimensions and depth in inches.
How deep should gravel be?
Driveways need 4-6 inches (often over a base layer), walkways 2-3 inches, and decorative landscaping 2 inches. Deeper is better for areas with vehicle traffic.
How many tons is a cubic yard of gravel?
It depends on the material: pea gravel ≈ 1.4 tons/yd³, crushed stone ≈ 1.5, river rock ≈ 1.65, sand ≈ 1.35, and topsoil ≈ 1.2. Select your material type for an accurate weight.
Should I order extra gravel?
Yes. Order about 5-10% extra to account for compaction, uneven ground, and spillage. Gravel settles after spreading, so the loose volume is larger than the final compacted volume.

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