Weighing, Dosing & Loss-in-Weight Feeding worked example

Gravimetric Vs Volumetric Delta at 61% feeder transfer efficiency: a worked example

This worked example runs the gravimetric vs volumetric delta numbers for a tougher week than the baseline: 61% feeder transfer efficiency instead of the typical 85%. Gravimetric Vs Volumetric Delta sizes how much ingredient you actually need to feed once real-world transfer losses are accounted for, versus the clean theoretical amount.

The inputs for this scenario

  • Finished units to be dosed: 500 units (held at the documented default)
  • Ingredient dose per finished unit: 0.08 units (held at the documented default)
  • Feeder transfer efficiency: 61 % (the input this scenario stresses; the baseline uses 85)

Working through the calculation

  • The calculation starts from the formula this tool documents: Required gravimetric vs volumetric delta = covered amount × use per unit ÷ transfer efficiency.
  • Required quantity works out to 65.57 gal at these inputs, and this is the headline figure for the scenario.
  • Theoretical amount works out to 40 gal at these inputs.
  • Loss allowance works out to 25.57 gal at these inputs.
  • Efficiency works out to 61 % at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where feeder transfer efficiency sits at 85% and the headline result is 47.06 gal, this scenario comes in 39.34% above the baseline at 65.57 gal.
  • Use it when planning raw-material purchases or comparing what a volumetric feeder delivers against a gravimetric target. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Required quantity: 65.57 gal (headline result)
  • Theoretical amount: 40 gal
  • Loss allowance: 25.57 gal
  • Efficiency: 61 %

Run it with your numbers

  • To rerun this with your own numbers, open the live Gravimetric Vs Volumetric Delta calculator, set feeder transfer efficiency to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.