Compost Carbon-Nitrogen Ratio
Calculate compost C:N ratio from materials. Free, instant.
How to Use Compost Carbon-Nitrogen Ratio
1
Enter brown and green material weights.
2
Enter their C:N ratios.
3
Get combined ratio.
Frequently Asked Questions
What C:N ratio is ideal?
25-30:1 is ideal. Too high (>40) = slow decomposition. Too low (<20) = smelly.