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 pathways, driveways, or decorative areas.
The calculator uses the formula:
Where:
Explanation: The calculator multiplies length × width × depth (converted from inches to feet) then divides by 27 to convert to cubic yards.
Details: Proper pea gravel volume estimation ensures you purchase the right amount, avoiding costly overages or project delays from shortages.
Tips: Measure your area's length and width in feet, then enter the desired depth in inches (typically 2-4 inches for pathways).
Q1: Why divide by 27 in the formula?
A: There are 27 cubic feet in 1 cubic yard, so this converts the volume from cubic feet to cubic yards.
Q2: What's the typical depth for pea gravel projects?
A: For walkways: 2-3 inches, for driveways: 4-6 inches. Adjust based on your specific needs.
Q3: How do I convert inches to feet for depth?
A: The calculator automatically converts inches to feet (dividing by 12) before calculation.
Q4: Should I add extra for compaction?
A: Pea gravel compacts about 10-15%, so consider adding this to your total volume.
Q5: How many bags is this if buying from a store?
A: Most pea gravel bags cover 0.5 cubic feet. Multiply cubic yards by 54 (since 1 cu yd = 27 cu ft × 2 bags per cu ft).