Compost Calculator

Calculate compost ratios for optimal decomposition. Balance carbon and nitrogen materials for healthy, fast-composting piles.

How to Calculate Compost Ratios

  1. 1 Add your composting materials (greens and browns)
  2. 2 Enter the amount of each material
  3. 3 View the calculated C:N ratio
  4. 4 Check if adjustments are needed
  5. 5 Follow recommendations to achieve optimal ratio

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Last updated: January 15, 2026 · v2.1