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Compost Carbon to Nitrogen Ratio Calculator

Enter the green (nitrogen-rich) and brown (carbon-rich) materials in your compost to achieve the ideal 25:1–30:1 C:N ratio.

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C:N Ratio
45:1
Too much carbon — add more green materials
🆓 100% Free🔒 Runs in your browser Instant results📱 Works on any device
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How to Use This Compost Ratio Calculator

  1. Enter green material weightGrass clippings, kitchen scraps.
  2. Enter brown material weightLeaves, cardboard, straw.
  3. View C:N ratioSee if you need to adjust.

Common Use Cases

  • Composting
  • Gardening
  • Sustainability
  • Environment

Frequently Asked Questions

This tool is for informational purposes only. Read our disclaimer.

Need help with this tool? help@bodhins.com

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