Organic waste & composting calculators.
Plan manure, compost, vermiculture, biogas, BSFL and Azolla systems with visible operational assumptions.
Organic waste & composting
Plan manure, compost, vermiculture, biogas, BSFL and Azolla systems with visible operational assumptions.
Dung and manure production calculator
Estimate daily and monthly wet manure mass from livestock headcount and entered per-animal output.
- Editable assumptions
- Transparent calculation
- Planning scope
Compost C:N ratio and blending calculator
Screen a brown-and-green feedstock blend against an entered compost C:N target.
- Editable assumptions
- Transparent calculation
- Planning scope
Vermicompost bed capacity calculator
Estimate bed volume, worm stock, waste loading and harvest from user-selected dimensions and rates.
- Editable assumptions
- Transparent calculation
- Planning scope
Biogas plant sizing and methane yield calculator
Estimate daily biogas and digester liquid volume from feedstock, yield and retention assumptions.
- Editable assumptions
- Transparent calculation
- Planning scope
CBG to LPG cylinder equivalent calculator
Compare a purified-biogas energy screen with an entered LPG-cylinder energy basis.
- Editable assumptions
- Transparent calculation
- Planning scope
Biogas generator power and digestate value calculator
Estimate electricity and digestate value from entered biogas, generator and farm-value assumptions.
- Editable assumptions
- Transparent calculation
- Planning scope
BSFL waste conversion calculator
Estimate wet larvae, dry meal and frass from an entered organic-waste processing stream.
- Editable assumptions
- Transparent calculation
- Planning scope
Azolla bio-feed culturing area calculator
Estimate pond or bed area and length needed for an entered daily Azolla harvest target.
- Editable assumptions
- Transparent calculation
- Planning scope
Measure feedstock before sizing a system
Wet mass, dry matter, carbon, nitrogen and yield vary by source and season. Use weighed samples and a consistent time period before relying on a production estimate.
Design for safety and the local operating context
Composting, biogas, larvae and livestock-feed systems have hygiene, gas, pathogen, permit and environmental requirements. A calculator supports planning; competent local operations oversight is still required.