River Rock Calculator
Calculate cubic yards of river rock for landscaping, drainage, and decorative beds
Enter Dimensions
Enter your dimensions above to see results
Tips & Notes
- •3"–4" depth is standard for decorative landscape beds.
- •Use 6" or more for drainage channels and dry creek beds.
- •River rock has a higher void ratio than crushed stone — order 10–15% extra.
- •Larger stones (3"–5") need more volume to cover the same area than smaller pea gravel.
- •Landscape fabric under river rock prevents weeds and keeps stones from sinking into soil.
Recommended Products
Popular items for this project — links may earn a commission.
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Materials & Supplies
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Tools You'll Need
True Temper R6STFFEC 6 Cu. Ft. Steel Wheelbarrow — Never Flat Tire
Seamless steel tray, never-flat tire, steel handles — essential for moving bulk materials
$120Amazon
True Temper 8"x8" Steel Hand Tamper
Compact flat-plate tamper for packing gravel, sand, and soil by hand
$55Amazon
NoCry Professional Knee Pads
EVA foam, adjustable straps, hard cap protection for ground-level work
$30Amazon