# Calcolo incertezza di misura (GUM)

> Uncertainty budget per the GUM: type A/B components, distributions and divisors, quadrature combination, expanded uncertainty U = k·u_c and a percentage budget.

Practice: software
Status: Tool
Tag: GUM, Incertezza, Misura, Metrologia, Tipo A/B
Method, assumptions and limits: <https://www.stline.it/en/wiki/measurement-uncertainty/index.md>

Page: <https://www.stline.it/en/tools/measurement-uncertainty/>

---

Demonstrative tool for measurement-uncertainty propagation per the GUM guide. List the uncertainty contributions (type A statistical or B estimated), pick a distribution (normal, rectangular, triangular) and sensitivity coefficient for each, and get the combined standard uncertainty u_c, the expanded one U = k·u_c and the budget with each contribution's percentage weight.

This file is a **descriptor**, not the tool's documentation: it says what the tool computes and by what method, in summary. Formulas, assumptions, validity conditions and limits are in the wiki linked above. The tool runs in the browser at the page given.