Formula
How this estimate works
cubic yards = area x depth in feet / 27; tons = cubic yards x density
A 180 sq ft area at 3 in deep needs about 1.67 cubic yards before waste.
Pea gravel volume
Pea gravel estimates use the same area and depth method as other gravel, then apply a density estimate to convert volume to tons.
Where pea gravel is used
Pea gravel is common for paths, decorative beds, seating areas, and drainage zones, but it can shift under vehicle traffic.
Assumptions used
- Pea gravel density is estimated at 1.3 tons per cubic yard.
- Actual weight can vary by source and moisture.
- Depth is applied evenly across the area.
Before you order materials
- Use edging where pea gravel might spread.
- Confirm whether pea gravel suits the traffic load.
- Add waste for irregular edges.
Frequently asked questions
How deep should pea gravel be?
Many decorative applications use around 2 to 3 inches, but project requirements vary.
Can pea gravel be used for driveways?
It can shift more than angular stone, so confirm whether it is appropriate for the traffic load.
How much does pea gravel weigh?
The calculator uses a planning density, but actual weight varies by supplier and moisture.