Gravel Calculation Formula:
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The Gravel Coverage Calculator helps determine the volume and weight of gravel needed for a specific area based on the area size, desired depth, and gravel density.
The calculator uses the gravel calculation formula:
Where:
Explanation: The calculation first determines volume in cubic feet, converts to cubic yards (since density is per cubic yard), then calculates weight based on the density factor.
Details: Accurate gravel calculation ensures you purchase the right amount of material for your project, avoiding both shortages and unnecessary excess.
Tips: Measure your area accurately in square feet. Common gravel depths range from 2-4 inches (0.17-0.33 ft) for landscaping. The default density factor of 1.4 tons/cubic yard works for most gravel types.
Q1: How do I measure irregularly shaped areas?
A: Break the area into simple shapes (rectangles, circles), calculate each separately, then sum the results.
Q2: What if my gravel has a different density?
A: Check with your supplier for the specific density of your gravel type and enter that value.
Q3: How much extra should I order?
A: It's recommended to order 10-15% more than calculated to account for compaction and irregularities.
Q4: What's the difference between cubic feet and cubic yards?
A: 1 cubic yard = 27 cubic feet. Suppliers typically sell by the cubic yard.
Q5: How do I convert inches to feet for depth?
A: Divide inches by 12 (e.g., 3 inches = 0.25 feet).