Gravel for 6,850 Square Feet
How much gravel or mulch for 6,850 sq ft, by depth.
Covering 6,850 sq ft at 3 inches deep needs about 63.43 cubic yards of gravel (~88.8 tons).
| Depth | Cubic yards | Weight (gravel) |
|---|---|---|
| 2" | 42.28 cu yd | 59.2 tons |
| 3" | 63.43 cu yd | 88.8 tons |
| 4" | 84.57 cu yd | 118.4 tons |
| 6" | 126.85 cu yd | 177.59 tons |
Cubic yards suit bulk delivery; bagged material comes in 2 cu ft bags. Weight shown for gravel (~1.4 tons/yd); mulch is much lighter.
Have exact dimensions? Use the full Gravel & Mulch Calculator to enter length, width and depth.
Last reviewed: November 2026
Data sources: Standard volume and area formulas.
Disclaimer: Quantities are estimates from the area you entered; measure your actual space and add a waste allowance. Material and labor costs vary by region.
Frequently Asked Questions
At a 3-inch depth, about 63.43 cubic yards at 3 inches deep. Deeper coverage needs more — see the table for 2 to 6 inches.
Two inches for a top-up, three to four inches for a fresh path or mulch bed. The table shows the volume at each depth.