Gravel Volume Formula:
Definition: This calculator estimates the volume of gravel needed based on the project area dimensions (length, width, and depth).
Purpose: It helps determine how much gravel is required for landscaping, construction, or drainage projects.
The calculator uses the formula:
Where:
Explanation: The calculator multiplies length × width × depth (converted to feet) then divides by 27 to convert cubic feet to cubic yards.
Details: Accurate gravel calculation ensures proper project planning, prevents material shortages, and helps control project costs.
Tips: Measure the area's length and width in feet. Enter the desired gravel depth in inches. All values must be > 0.
Q1: Why divide by 27?
A: There are 27 cubic feet in 1 cubic yard (3 feet × 3 feet × 3 feet).
Q2: How do I measure irregular areas?
A: Break into rectangular sections, calculate each separately, then sum the volumes.
Q3: What's a typical gravel depth?
A: For driveways: 4-6 inches, for walkways: 2-3 inches, for drainage: 6-12 inches.
Q4: Should I add extra for compaction?
A: Yes, add 10-20% more volume to account for compaction, especially for driveways.
Q5: How many tons is a cubic yard?
A: Typically 1.2-1.5 tons per cubic yard depending on gravel type and moisture.