Compost Carbon:Nitrogen Ratio Calculator
Estimate the combined carbon-to-nitrogen ratio of two compost ingredients from their dry-matter proportions and C:N ratios.
Results
Estimated combined C:N
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Use the result as a planning estimate and verify project-specific dimensions, product information and local requirements where relevant.
How it works
Each ingredient ratio is converted into relative carbon and nitrogen fractions, those fractions are combined by the entered dry-matter parts, and total carbon is divided by total nitrogen.
combined C:N = total carbon ÷ total nitrogenLimitations
- This is an approximate dry-matter calculation. Real feedstocks vary in moisture, composition and measured C:N ratio.