Pea Gravel Volume Formula:
Definition: This calculator estimates the volume of pea gravel needed based on the area dimensions and desired depth.
Purpose: It helps homeowners and landscapers determine how much pea gravel is required for projects like pathways, driveways, or decorative landscaping.
The calculator uses the formula:
Where:
Explanation: The calculator multiplies length × width × depth (converted from inches to feet) then divides by 27 to convert cubic feet to cubic yards.
Details: Proper volume estimation ensures you purchase the right amount of material, avoiding costly overages or project delays from shortages.
Tips: Measure the length and width of your project area in feet. Enter the desired depth in inches (typically 2-4 inches for pathways). All values must be > 0.
Q1: Why divide by 27?
A: There are 27 cubic feet in 1 cubic yard, so this converts the volume measurement to standard landscaping material units.
Q2: What's a typical depth for pea gravel?
A: For walkways: 2-3 inches. For driveways: 4-6 inches. For decorative purposes: 1-2 inches.
Q3: How do I measure irregular areas?
A: Break into rectangular sections, calculate each separately, then sum the volumes.
Q4: Does this include compaction?
A: No, consider adding 10-15% to your total for compaction if the gravel will be walked or driven on.
Q5: How many bags is this?
A: Pea gravel typically comes in 0.5 cu ft bags. Multiply your cubic yards by 54 to get the approximate number of bags needed.