Enter your area dimensions (length and width, or total area), pick your rock type and depth, then calculate to get volume in cubic yards, estimated weight, number of 50lb bags, and total cost — with an optional waste factor so you don't make a second trip to the store.
Volume Needed
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Volume (Cubic Feet)
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Estimated Weight
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Total Cost
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50lb Bags Needed
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The amount depends on your area and desired depth. For most landscaping projects, 2-3 inches of depth is recommended. Use our calculator to get accurate volume and weight estimates based on your specific dimensions.
River rocks are naturally weathered stones found in riverbeds with smooth, rounded surfaces. They're commonly used for landscaping, drainage, walkways, garden beds, and decorative features around pools and water features.
River rock typically weighs between 1.2 to 1.6 tons per cubic yard, depending on the rock type and size. Standard river rock averages about 1.3 tons per cubic yard.
A waste factor accounts for material loss during transport, spillage, and compaction. It also provides extra material for future repairs. A 10% waste factor is typically recommended for most landscaping projects.
For most decorative applications, 2-3 inches is ideal. For walkways or high-traffic areas, use 3-4 inches. For drainage applications, 4-6 inches may be needed depending on your specific requirements.
Calculate the total area by multiplying length times width for rectangular areas. For irregular shapes, break them into smaller rectangles and add the areas together. Always measure in the same units (feet or meters).
Different river rock types vary in color, size, and density. Standard river rock is versatile and cost-effective. Specialty types like Cheshire Pink or Congo River Rock offer unique colors for specific design aesthetics.
River rock costs typically range from $25-$60 per cubic yard depending on the type, size, quality, and your location. Specialty or decorative river rocks generally cost more than standard varieties.