Pea Gravel Calculator
Calculate the amount of pea gravel needed by area and depth.
Formula
Volume (cu yd) = L × W × D(ft) ÷ 27; Tons = cu yd × 1.2
- Pea gravel density ≈ 1.2 short tons/cu yd (lighter than crushed stone at 1.4).
- Common depth: 2–3 in for pathways; 4–6 in for play areas or drainage.
- Add 5–10% for waste.
30 ft × 10 ft, 3 in deep
Inputs
- Length: 30 ft
- Width: 10 ft
- Depth: 3 in
30 × 10 × 0.25 = 75 cu ft ÷ 27 = 2.78 cu yd × 1.2 = 3.33 tons.
Frequently asked questions
How deep should pea gravel be?
For walkways: 2–3 in. For playgrounds or drainage: 3–6 in. For decorative landscaping: 2 in.