Gravel Calculator

Instantly estimate the amount of gravel you need for your project. Includes expert tips, coverage tables, and answers to common questions.

Gravel Calculator

Enter your area dimensions and desired depth to calculate cubic yards needed.

Gravel Coverage Reference

Pea Gravel100 sq ft @ 2" deepSmooth, decorative, walkways
Crushed Stone90 sq ft @ 2" deepDriveways, drainage
River Rock80 sq ft @ 2" deepBorders, accents
Decomposed Granite70 sq ft @ 2" deepPaths, patios

Gravel Tips

  • Measure your area in feet for best results.
  • Add 10% extra gravel for settling and uneven surfaces.
  • 2-3 inches is typical for walkways, 4-6 inches for driveways.
  • Compact gravel in layers for stability.
  • Use landscape fabric to prevent weeds.

FAQs

  • Q: How do I convert inches to feet for depth?
    A: Divide the number of inches by 12. For example, 6 inches = 0.5 feet.
  • Q: How much gravel do I need for a circular area?
    A: Use the formula: Area = π × radius². Then use the calculator with your area and desired depth.
  • Q: What is the best gravel depth?
    A: 2-3 inches for walkways, 4-6 inches for driveways or heavy use.