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Compost Calculator: Find Your Perfect Organic Material Mix Ratio

Free compost calculator to find the perfect C:N ratio for your compost pile. Balance green and brown materials for optimal decomposition and nutrient-rich results.

Compost Calculator

Calculate the optimal mix for your compost pile by entering the types and quantities of materials you have available. The calculator will analyze your inputs and provide recommendations for achieving an ideal carbon-to-nitrogen ratio and moisture content.

Material Inputs

Material Type

Quantity (kg)

Enter material quantities to see compost mix calculations and recommendations.

Composting Tips

Turn your compost pile regularly to aerate it and speed up decomposition.
Keep your compost moist but not soggy - it should feel like a wrung-out sponge.
Chop or shred materials into smaller pieces for faster decomposition.
Balance green (nitrogen-rich) and brown (carbon-rich) materials for optimal results.
Avoid adding meat, dairy, or oily foods to your compost as they can attract pests.

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Compost Calculator: Find Your Perfect Organic Material Mix Ratio