This tool will calculate the amount of river rock you need for your landscaping project.

### How to Use the River Rock Calculator

To determine how much river rock you need, follow these steps:

- Measure the length and width of the area you want to cover with river rock. Enter these values in feet.
- Measure the depth of the river rock layer you want to achieve. Enter this value in inches.
- Click the “Calculate” button to get the total weight of river rock you need in pounds.

### How It Calculates

This calculator uses the following formula to calculate the total weight of river rock needed:

- Volume (in cubic feet) = Length (ft) * Width (ft) * Depth (inches) / 12
- Total Weight (in pounds) = Volume (cubic feet) * Average Weight of River Rock (100 pounds per cubic foot)

### Limitations

Please note the following limitations of this calculator:

- The calculator assumes a uniform coverage area and does not account for any variations in depth or density of the river rock.
- This calculator uses an average weight for river rock, and the actual weight may vary depending on the specific type of rock you use.
- The precision of your measurements can affect the accuracy of the result. Always double-check your measurements for better accuracy.

## Use Cases for This Calculator

### Calculate the Amount of River Rock Needed for a Garden Bed

Determine the total square footage of your garden bed by measuring the length and width. Input the depth of river rock desired, such as 2 inches. The calculator will provide you with the exact amount of river rock required in cubic yards.

### Estimate River Rock Quantity for a Landscaping Project

Measure the area of the landscaping project in square feet or yards. Specify the depth of river rocks you plan to use, e.g., 3 inches. Enter the values into the calculator to obtain the total volume of river rock needed, ensuring accurate material estimation.

### Calculate River Rock Amount for a Pathway or Walkway

Measure the length and width of the pathway in feet. Choose the thickness of river rocks, such as 1 inch. Enter the values into the calculator to instantly determine the quantity of river rock required to complete the pathway project.

### Determine River Rock Quantity for a Drainage Project

Measure the trench’s length, width, and depth for the drainage system. Specify the depth of river rock needed for proper drainage, e.g., 6 inches. Use the calculator to find out the exact amount of river rock material to fill the trench adequately.

### Calculate River Rock Needed for Decorative Purposes

Measure the dimensions of the area where you want to spread river rock for decoration. Decide on the thickness of the river rock layer, for example, 4 inches. Input the details into the calculator to know the precise amount of river rock required for the decorative project.

### Estimate River Rock Quantity for a Water Feature Design

Determine the length, width, and depth of the water feature you’re planning to construct. Specify the depth of river rocks around the water feature, e.g., 8 inches. Utilize the calculator to get the accurate volume of river rock needed to enhance your water feature design.

### Calculate River Rock Amount for a Retaining Wall Project

Measure the length and height of the retaining wall in feet. Choose the thickness of river rocks to be used, such as 5 inches. Enter the measurements into the calculator to determine the total quantity of river rock material for the retaining wall construction.

### Determine River Rock Quantity Needed for Ground Cover

Measure the area you want to cover with river rock in square footage. Decide on the desired depth of the river rock layer, for instance, 2.5 inches. Input the values into the calculator to find out how much river rock you need for effectively covering the ground area.

### Estimate River Rock Amount for a Flower Bed Border

Measure the length and width of the flower bed border in feet. Specify the depth of river rock layer you plan to use, e.g., 3 inches. Enter the measurements into the calculator to instantly figure out the volume of river rock required for edging the flower bed.

### Calculate River Rock Needed for a Zen Garden Design

Determine the dimensions of the Zen garden area in square feet. Choose the depth of river rocks for the serene design, for example, 5 inches. Utilize the calculator to know precisely how much river rock is needed to create a tranquil Zen garden space.