Compost Carbon-Nitrogen Ratio
Balance green and brown compost ingredients to reach an ideal carbon-to-nitrogen ratio for fast, odor-free decomposition.
CalcSimpler Examples
- 10 kg greens (17:1), 5 kg browns (60:1) ⇒ 31.33 C:N
- 5 kg greens (20:1), 15 kg browns (80:1) ⇒ 65 C:N
- 8 kg greens (15:1), 8 kg browns (40:1) ⇒ 27.5 C:N
FAQ
Why is C:N important?
Proper ratios speed composting and reduce odors.
Can I use volume instead of weight?
Weight is more accurate because material densities vary.
What is the ideal ratio?
Around 30:1 for efficient composting.
How often should I adjust the ratio?
Check the balance whenever adding large amounts of greens or browns.
Additional Information
- Aim for an overall C:N ratio near 30:1 for efficient composting.
- Greens like fruit scraps add nitrogen; browns such as straw supply carbon.
- Mix materials thoroughly and keep the pile moist to aid microbial activity.
CalcSimpler