Weighing, Dosing & Loss-in-Weight Feeding calculator
Measured Dose Underfeed Margin Calculator
Check an observed dose against its qualified minimum mass. Enter the net weighed dose and the lower limit from your recipe or inspection procedure.
What this calculator does
- Check an observed dose against its qualified minimum mass.
Formula used
- Dose margin = Measured dose − Minimum permitted dose
- Underfeed = max(0, Minimum permitted dose − Measured dose)
- Underfeed % = Underfeed × 100 ÷ Minimum permitted dose
Inputs explained
- Measured Net Dose: Actual tared dose from the specified inspection method.
- Minimum Permitted Dose: Qualified lower mass limit for this ingredient dose.
How to use the result
- Best suited to underfeed disposition checks, minimum dose verification.
- Does not predict future failures or evaluate an upper dose limit.
Common questions
- Is the minimum automatically a legal limit? No. Supply the qualified limit that applies to your product and procedure.
- What does a positive margin mean? The measured dose exceeds the entered minimum by that mass before considering uncertainty.
- Does this check overfeeding too? No. Use the full tolerance-window or signed dosing-error calculator when an upper limit also applies.
- Can one passing dose prove the feeder is stable? No. Stability and failure frequency require a defined sampling plan and multiple results.
Last reviewed 2026-10-12.