What Is the Gravel Tonnage Coverage Calculator?
A gravel tonnage coverage calculator estimates the mass and volume of aggregate stone needed for landscaping and civil works.
How Does the Gravel Tonnage Coverage Calculator Work?
Calculates cubic feet of volume, converts to cubic yards, and applies material-specific bulk density.
Gravel Tonnage Coverage Calculator Formula & Variables
The core mathematical equation utilized by this calculator is expressed as:
Tons = [Length × Width × (Depth ÷ 12) × Bulk Density (lb/cu ft)] ÷ 2,000
Computes cubic feet volume, multiplies by aggregate density in pounds per cubic foot, and divides by 2,000 lbs per US short ton.
How to Use the Gravel Tonnage Coverage Calculator
- Enter the length and width of the bed, depth in inches, and select your aggregate type.
Step-by-Step Example Calculation
20′ × 10′ Driveway Section at 3″ Depth with Crushed Stone
Input Values:
lengthFt:20
widthFt:10
depthInches:3
gravelType:crushed_stone
Understanding Your Result
Displays both cubic yards (for yard pick-up) and short tons (for quarry dump truck delivery).
Factors That Affect the Result
- Subgrade compaction, gravel particle size distribution, moisture retention, and slope.
When Should You Use This Calculator?
- Landscaping rock installation, driveway gravel resurfacing, French drain construction, and fire pit ground cover.
Assumptions & Limitations
- Calculations reflect loose bulk density prior to vibratory plate tamper compaction.
Frequently Asked Questions
Calculation Accuracy & Reference Note
National Stone, Sand & Gravel Association (NSSGA) aggregate bulk density tables.