How Much Gravel, Sand, and Mulch to Buy for Your Garden

Gravel, mulch, sand, small rocks, and soil amendments can play a healthy and decorative role in your garden. Gravel, sand, and rocks are generally sold by weight. For coverage that's 2 inches (5 centimeters) deep, use the following amounts:

• 1 U.S. ton covers approximately 100 square feet.

  
  



• 1 metric ton covers approximately 10 square meters.

  
  

Soil amendments and mulch are generally sold by volume. For coverage that's 2 inches (5 centimeters) deep, use the following amounts:

• 1 cubic yard covers approximately 160 square feet.

  
  



• 1 cubic meter covers approximately 20 square meters.

  
  

Use the following table to convert U.S. and metric measurements. In each case, the conversions are approximately equal:

1 centimeter ≈ 0.4 inches	1 inch ≈ 2.5 centimeters
1 meter ≈ 39 inches ≈ 1.1 yards	1 yard ≈ 0.9 meter
1 kilometer ≈ 0.6 mile	1 mile ≈ 1.6 kilometers
1 liter ≈ 1.1 quarts	1 quart ≈ 0.9 liter
1 kilogram ≈ 2.2 pounds	1 pound ≈ 0.4 kilograms
1 gram ≈ 0.04 ounce	1 ounce ≈ 31 grams

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