A cubic yard of pea gravel weighs about 1.4 tons (2,800 lb) loose, as it comes off the truck — published factors run 1.35–1.6 tons.
“Cheapest” compares bulk delivered with 0.5 cu ft bags at the prices below.
Payload is on the Tire & Loading sticker in the driver's door jamb. Single-axle dump trucks carry about 5 tons; bigger orders come on a tandem (up to 18 tons).
Bulk prices are typical 2026 yard and national-guide prices (American Rock Supply, Mulch Pros, Roseville Rock Supply); bag prices are retail snapshots. Tap any price to use your yard's.
| Depth | Sq ft per cu yd | Sq ft per ton | Tons per 100 sq ft |
|---|---|---|---|
| 1 in | 324 | 231 | 0.43 |
| 2 in | 162 | 116 | 0.86 |
| 3 in | 108 | 77 | 1.3 |
| 4 in | 81 | 58 | 1.73 |
| 6 in | 54 | 39 | 2.59 |
Weight converts yards to tons: tons = cubic yards × 1.4. A cubic yard is 27 cubic feet; spread 1 in deep it covers 324 sq ft, so coverage at any depth is 324 ÷ inches, and per ton it is 324 ÷ (inches × 1.4).
Quarry tables disagree because stone type, gradation and moisture change the weight, and because some list compacted rather than loose weights — Martin Marietta's "base" figures (1.90–1.95 t) are compacted-in-place values. If your yard prints a factor on its ticket or website, enter it in the calculator; it beats any average.
Paths, play areas, patios set in gravel, and ground cover. Rounded stones roll underfoot and migrate — edge it.
The full method, material data and tips are on the main gravel calculator page.