Pea Gravel Calculator (Volume, Weight & Bags)
Calculate exact cubic yards, tons, and bag counts of smooth 3/8" pea gravel for patios, paths, and landscape beds.
1. Select Project Shape
2. Enter Dimensions
3. Select Gravel Aggregate & Density
4. Add Waste & Compaction Buffer
Gravel Layer & Excavation Cross-Section Simulator
Visualize multi-layer ground excavation, plate compaction settling, and dump truck hauling logistics in real-time.
To achieve a final compacted depth of 6.0 inches, you must spread 7.1 inches of loose uncompacted aggregate before running the plate compactor.
Recommended Depth & Base Specifications for Pea Gravel Calculator
Selecting the proper installation depth is the single most critical factor in preventing premature rutting, sinking, or weed breakthrough.
| Layer / Application | Recommended Depth | Stone Aggregate Type | Contractor Notes |
|---|---|---|---|
| Decorative Mulch Bed Topper | 2 Inches | Pea Gravel (3/8") | Suppresses weeds while retaining soil moisture around perennials and shrubs. |
| Footpath & Patio Seating | 2.5 to 3 Inches | Pea Gravel (3/8") | Optimal depth for barefoot and shoe walking without sinking into loose stone. |
| Dog Potty Area / Run | 3 to 4 Inches | Washed Pea Gravel | Provides rapid liquid drainage and stays cool in summer sunshine. |
💡 Contractor Installation Pro Tips
- Do not install pea gravel deeper than 3 inches for walking areas; otherwise, feet will sink as if walking in deep dry sand.
- Use rigid metal or poly landscape edging with at least a 0.5-inch lip above the gravel level to prevent pea stones from scattering into lawn grass.
- Underlay with heavy-duty permeable weed barrier fabric to prevent stones from disappearing into soft loam or clay.
Frequently Asked Questions About Pea Gravel Calculator
How much does a cubic yard of pea gravel weigh?
One cubic yard of pea gravel typically weighs between 2,600 and 2,800 lbs (approximately 1.3 to 1.4 tons), depending on moisture level and mineral source.
How many 0.5 cu ft bags of pea gravel are in a ton?
There are approximately 50 to 54 bags (0.5 cu ft each) in one US ton (2,000 lbs) of pea gravel, or 54 bags per cubic yard.
Is pea gravel good for high foot-traffic walkways?
Yes, because its rounded texture is gentle on footwear and pets, provided the layer is kept between 2.5 and 3 inches deep and enclosed with rigid edging.
Missing a Stone Type or Have Feedback?
We update density presets and formulas regularly based on local quarry feedback.