Calculators
Calibration decision tools
Practical calculators for the calibration decisions that actually matter, with the standards built in. The kind of thing usually buried in a paid spreadsheet or a consultant's binder. No signup, and your numbers never leave your browser.
ISO/IEC 17025 · decision rules
Guard Band & Decision Rule Calculator
Compute your test uncertainty ratio (TUR), set guard-banded acceptance limits, and generate a decision-rule statement for your certificates. Built around ISO/IEC 17025 clause 7.1.3 and ILAC-G8.
Open the toolCalibration intervals
Calibration Interval Calculator
Get a defensible interval two ways: a risk-based starting point from instrument type and usage when you have no history, or a reliability-target method from your as-found in-tolerance data.
Open the toolMeasurement uncertainty
Thermocouple & RTD Uncertainty Calculator
Build a temperature calibration uncertainty budget the GUM way: combine the reference, readout, repeatability, bath, and reference-junction contributors into the combined and expanded uncertainty at k = 2.
Open the toolMeasurement decision risk
Conformance Probability & False-Acceptance Risk
Turn a measured value and its uncertainty into a conformance probability and the specific risk of a false accept or false reject, the JCGM 106 way. The rigorous decision-risk number a guard band only approximates.
Open the toolMeasurement systems (MSA)
Gage R&R Calculator
Run a measurement system analysis from your operator and part data: repeatability, reproducibility, %GRR and number of distinct categories, with a traffic-light verdict on whether the gage is good enough.
Open the toolCalibration intervals
Drift Rate & Interval Calculator
Work out how fast an instrument is drifting and how long until it risks going out of tolerance, then get a recommended calibration interval with margin to spare.
Open the toolMeasurement uncertainty
Resolution Uncertainty Calculator
Convert an instrument resolution (and optional repeatability) into a standard and expanded uncertainty the GUM way. A quick companion to the full uncertainty budget.
Open the toolNew to decision rules and intervals? Read the guide: Decision rules, guard banding, TUR & calibration intervals under ISO/IEC 17025 →
These run on numbers you type. Axiospec runs on your actual fleet.
The same decisions, automated across every instrument you own: due dates, traceability, and audit-ready records in one place. See it on real calibration data.
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