Pea Gravel Calculator
Calculate how much pea gravel you need for patios, pathways, playgrounds, and garden beds.
Results
Visualization
How It Works
Pea gravel consists of small, naturally rounded stones typically 1/4 to 1/2 inch in diameter. It is popular for patios, garden paths, playgrounds, and drainage areas because it drains well and feels comfortable underfoot.
The Formula
Volume (cu ft) = Length x Width x Depth / 12
Cubic Yards = Volume / 27
Tons = Cubic Yards x 1.35
Cubic Yards = Volume / 27
Tons = Cubic Yards x 1.35
Variables
- L — Length of the area in feet
- W — Width of the area in feet
- D — Desired depth in inches
- 1.35 — Approximate weight of pea gravel in tons per cubic yard
Example
A 12 ft x 10 ft patio at 2 inches deep needs 20 cu ft = 0.74 cubic yards = 1.00 tons. At $60/ton that costs about $60.
Tips
- Install metal or plastic edging to keep pea gravel from migrating out of the area.
- Pea gravel shifts underfoot, so it is best for casual paths, not high-traffic walkways.
- A 2-inch layer is enough for decorative areas; use 3 inches for play areas.
- Lay landscape fabric underneath to prevent weeds and keep stones from mixing with soil.
- Pea gravel is one of the most affordable decorative stone options per ton.