River Rock Calculator
Estimate the amount of river rock needed for landscaping projects. Calculate volume, weight, and cost based on area dimensions and depth.
Published by:
isCalculator Editorial Team
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How to use this tool?
This calculator estimates the weight and cost of river rock needed for landscaping or construction projects.
Step-by-Step Guide
- Select Area Shape: Choose Rectangular or Circular from the dropdown.
- Enter Dimensions (in feet):
- For rectangular: provide Length and Width.
- For circular: provide the Diameter.
- Enter Depth (in inches): Input the desired rock depth (0.5 to 24 inches).
- Optional - Cost per Ton ($): Enter the price per ton to calculate total cost. Leave blank if not needed.
- Click "Calculate": The results show volume in cubic feet and cubic yards, weight in tons, and total cost.
Important Notes
- All measurements are in Imperial units (feet, inches, tons).
- The calculator assumes river rock density of 1.4 tons per cubic yard.
- Depth must be between 0.5 and 24 inches.
Previous Results
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Frequently Asked Questions
For rectangular areas, measure length and width in feet. For circular areas, measure the diameter. Multiply length by width for rectangle, or use π × (diameter/2)² for circle to get square footage.
For most landscaping uses like walkways or ground cover, a depth of 2 to 3 inches is typical. For drainage or heavy traffic areas, 4 to 6 inches may be needed.
One ton of river rock typically covers about 100-120 square feet at a depth of 2 inches. Coverage varies based on rock size and depth.