Recycling & Waste Math Center
Measured diversion, collection, containers, mass and costs. 20 tools with purposes, formulas and worked examples.
Simple mode uses starting defaults for extra scenario controls. Advanced exposes those controls where available. Change an entry, then press Calculate.
Complete truth table
Formula, calculation steps & example
All 20 tools: purposes and formulas
- Waste diversion percentage — Use the labeled measurements to calculate waste diversion percentage.
A ÷ B × 100 (A, B, C refer to the labeled entries)
- Remaining disposal mass — Use the labeled measurements to calculate remaining disposal mass.
A − B (A, B, C refer to the labeled entries)
- Recycled material mass share — Use the labeled measurements to calculate recycled material mass share.
A ÷ B × 100 (A, B, C refer to the labeled entries)
- Collection volume total — Use the labeled measurements to calculate collection volume total.
A × B (A, B, C refer to the labeled entries)
- Bins for waste volume — Use the labeled measurements to calculate bins for waste volume.
ceiling(A ÷ B) (A, B, C refer to the labeled entries)
- Waste bulk density — Use the labeled measurements to calculate waste bulk density.
A ÷ B (A, B, C refer to the labeled entries)
- Mass from bulk density — Use the labeled measurements to calculate mass from bulk density.
A × B (A, B, C refer to the labeled entries)
- Collection loads — Use the labeled measurements to calculate collection loads.
ceiling(A ÷ B) (A, B, C refer to the labeled entries)
- Disposal invoice model — Use the labeled measurements to calculate disposal invoice model.
A × B (A, B, C refer to the labeled entries)
- Recovery sale revenue — Use the labeled measurements to calculate recovery sale revenue.
A × B (A, B, C refer to the labeled entries)
- Recovery revenue minus handling costs — Use the labeled measurements to calculate recovery revenue minus handling costs.
A − B (A, B, C refer to the labeled entries)
- Collection cost per kilogram — Use the labeled measurements to calculate collection cost per kilogram.
A ÷ B (A, B, C refer to the labeled entries)
- Reuse count share — Use the labeled measurements to calculate reuse count share.
A ÷ B × 100 (A, B, C refer to the labeled entries)
- Reuse purchase budget difference — Use the labeled measurements to calculate reuse purchase budget difference.
A × B (A, B, C refer to the labeled entries)
- Measured waste per person — Use the labeled measurements to calculate measured waste per person.
A ÷ B (A, B, C refer to the labeled entries)
- Measured waste per day — Use the labeled measurements to calculate measured waste per day.
A ÷ B (A, B, C refer to the labeled entries)
- Waste mass change percentage — Use the labeled measurements to calculate waste mass change percentage.
(B − A) ÷ A × 100 (A, B, C refer to the labeled entries)
- Entered compost yield — Use the labeled measurements to calculate entered compost yield.
A × B (A, B, C refer to the labeled entries)
- Non-target material share — Use the labeled measurements to calculate non-target material share.
A ÷ B × 100 (A, B, C refer to the labeled entries)
- Container fullness — Use the labeled measurements to calculate container fullness.
A ÷ B × 100 (A, B, C refer to the labeled entries)
Definitions and source references
Unit definitions and selected model references:
- Virginia Tech: wing geometry and mean aerodynamic chord
- Aircraft Design course: tail volume definitions
- Prusa: filament and printer calculation references
- NIST: SI defining constants
- NASA: aerodynamic lift models
- Horizon Hobby: product and battery documentation
- Smithsonian: Maya calendar units
- NIST: frequency intervals and cents
- NIST: binary prefixes
- NOAA: nautical miles and knots
- RFC 3021: IPv4 /31 point-to-point links
- MDN: exact integer arithmetic
- NIST: international-foot unit conversions
- NASA/JPL: astronomical unit definitions
- NASA: ideal rocket equation
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