UNCERTAINTYLAB · PROFESSIONAL BROWSER TOOL
Make measurement uncertainty visible.
Build a Type A/B uncertainty budget, convert normal, rectangular, triangular, and U-shaped inputs to standard uncertainty, then apply sensitivity coefficients, correlation terms, and Welch–Satterthwaite effective degrees of freedom.
01 · WORKBENCH
Inputs and files stay on this device
Processed locally
/Focus first input⌘ ↵Run primary action⌘ ⇧ SDownload local reportAlt RJump to latest resultsAlt LSwitch languageAlt TSwitch themeAlt CToggle high contrast
Local report studioPreview · Markdown · JSON · SHA-256
SHA-256
—Uses only the currently visible result summary, never input controls or original files; the fingerprint is also calculated locally.
Local analysis checkpointsUp to 5 · saved only when you choose
Stores only the visible result summary, time, and an optional short label; imported files and input controls are never stored. Imports must match this tool and stay under 128KB; comparison also stays on this device.
02 · CAPABILITIES
Built deeply for one narrow workflow
Sensitivity and correlation covariance
Effective degrees and expanded uncertainty
This is a first-order JCGM GUM budgeting aid. It cannot prove model completeness, distribution choice, identified correlation, or coverage probability. Nonlinear, strongly correlated, or non-Gaussian work may need Monte Carlo methods and metrology review.
Read the source ↗NO ACCOUNT · LOCAL PROCESSING · EXPORTABLE