Enter your pile's Length, Width, and Garden or Lawn Type (or set a Custom Depth) into the Compost Calculator to find exactly how much Compost you Need — plus your Total Area, Application Depth, and volume in Cubic Feet.
Compost Needed
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Cubic Feet
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Total Area
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Application Depth
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Compost is decayed organic matter, primarily plant products like leaves and kitchen scraps. It naturally breaks down to produce a nutrient-rich product that improves soil health and plant growth.
Compost improves soil structure, provides essential nutrients, enhances water retention, and supports beneficial microorganisms. It leads to healthier plants, better yields, and improved soil quality over time.
For new lawns, apply 1-2 inches of compost incorporated 6-8 inches deep. For established lawns, use 1/4 to 1/2 inch as topdressing. Gardens typically need 1-2 inches mixed into existing soil.
Multiply your area (length × width) by the desired depth. Convert the result to cubic yards by dividing by 324 (since there are 324 square inches in a square yard at 1 inch depth).
Compost is typically sold by cubic yards or cubic feet. One cubic yard equals 27 cubic feet. Use measuring tools or count bags to determine the amount you're applying to your project area.
Compost costs vary by location and quality, typically ranging from $25-60 per cubic yard. Bulk purchases are usually more economical than bagged compost for larger projects.
Yes! Home composting uses kitchen scraps, yard waste, and other organic materials. It takes 3-12 months to fully decompose, depending on materials used, pile management, and environmental conditions.
Generally, don't exceed 25-30% compost in soil blends. For containers or raised beds, limit compost to no more than 25% of the total soil volume to prevent drainage issues.