River rock calculator
Short answer
River rock weighs about 1.45 tons per cubic yard. Covering 100 sq ft at 3 inches deep takes about 0.93 cubic yards (1.34 tons).
Weight per yard
1.45 tons
Best for
Decorative rock
River rock coverage per cubic yard
| Depth | 1 yd³ covers |
|---|---|
| 2" | 162 sq ft |
| 3" | 108 sq ft |
| 4" | 81 sq ft |
| 6" | 54 sq ft |
Your project
Calculate river rockOther materials
Frequently asked questions
How much does a yard of river rock weigh?
About 1.45 tons per cubic yard (2,900 lbs), give or take with moisture.
How much area does a yard of river rock cover?
One cubic yard covers about 108 sq ft at 3 inches deep, or half that at 6 inches. Enter your area and depth in the calculator for an exact figure.
How many yards of river rock do I need?
Multiply the area (sq ft) by the depth in feet, then divide by 27. The calculator does this and also gives the weight in tons, which is how bulk river rock is sold.