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THE FEUTEX TOOLKIT

Kitchen Scale Rounding Uncertainty

Estimate worst-case display rounding uncertainty when an ingredient is weighed by the difference of two scale readings.

Cooking workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaDisplayed added mass = after-before; Worst-case difference rounding = step; Relative rounding bound = 100*step/(after-before)

Made for real tasks

  • Estimate worst-case display rounding uncertainty when an ingredient is weighed by the difference of two scale readings.
  • Compare an alternative set of measurements without uploading personal data.
Explore step-by-step workflows →

Worked example

Inputs

Displayed starting mass
250 g
Displayed ending mass
258 g
Scale display increment
1 g

Expected results

Displayed added mass
8 g
Worst-case difference rounding
1 g
Relative rounding bound
12.5 %

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter displayed starting mass, displayed ending mass, and scale display increment in the displayed units.
  2. Calculate and use each labeled result for kitchen scale rounding uncertainty. Compare the result with a measured sample before committing materials.

Try this example

{
  "before": 250,
  "after": 258,
  "step": 1
}

Accuracy and scope

Rounding bound only, not a calibration certificate. Bias, drift and repeatability are additional uncertainties; not for medication or hazardous ingredients.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.