Multi-material calculator
- Recommended inputsArea + depth + material density
- Aggregate presetsGravel, road base, crushed stone
- Landscape presetsPea gravel and mulch
Calculate volume, cubic yards, tons, weight, bags and cost for gravel, road base, crushed stone, pea gravel or mulch.
4 shapes · Depth presets · Supplier-ready
The same volume can have a very different weight depending on material. Use road base or crushed stone for compacted work, pea gravel for loose decorative cover, and mulch for planting beds; replace presets with your supplier density when available.
| Material | Density | Typical use |
|---|---|---|
| General gravel | 2,700 lb / cu yd | Paths, drainage and general landscaping |
| Road base / crusher run | 3,374 lb / cu yd | Compacted driveways, pads and sub-bases |
| Crushed stone | 2,431 lb / cu yd | Drainage, bases and angular aggregate layers |
| Pea gravel | 2,565 lb / cu yd | Decorative beds, paths and play areas |
| Shredded hardwood mulch | 500 lb / cu yd | Garden beds, borders and tree rings |
It multiplies adjusted cubic yards by the selected material density in pounds per cubic yard, then divides by 2,000 for US tons. Supplier density should replace the preset whenever available.
Yes. Results include common bag counts, cubic yards, tons and optional bulk and bagged costs so you can compare ordering methods.
Density varies substantially by material, particle size, moisture and compaction. Mulch is much lighter than gravel or road base, so selecting the correct preset matters.
Use compaction for materials installed and compacted in layers, and a smaller waste allowance for grading, spillage and supplier rounding. Confirm structural specifications separately.
This estimate converts the measurements you enter into volume, applies your selected allowances, and uses the displayed material density to estimate weight. Every input remains editable.
Material density, moisture, compaction, subgrade conditions, supplier rounding, and delivery minimums vary. Confirm the final quantity and specification with your supplier or contractor.