Free Calibration Tools
Practical tools for UK quality managers — measurement uncertainty calculators, calibration schedule templates, ISO compliance self-assessments, and certificate completeness checks. Free, no signup required.
Calibration Certificate Completeness Checker
Paste the contents of a calibration certificate and we'll flag missing ISO/IEC 17025 / ISO 9001 fields — measurement uncertainty, traceability statement, environmental conditions, signatory details. No upload, no signup.
Measurement Uncertainty Calculator
Combine Type A + Type B uncertainty contributions per JCGM 100 / ISO/IEC 17025. Enter your standard uncertainties, coverage factor, and sensitivity coefficients to get the expanded uncertainty.
Calibration Schedule Generator
Add your instruments, set calibration intervals, and generate a schedule with due dates and status indicators. Export as CSV.
Calibration Interval Recommender
Select your equipment type, usage pattern, and criticality to get a recommended calibration interval based on ISO 9001 best practices.
ISO 9001 Clause 7.1.5 Compliance Self-Assessment
Answer 10 questions about your calibration management practices and get an instant compliance score with specific recommendations.
Ready for the full system?
The free tools cover one-off calculations. CalProof handles the recurring workflow — instrument register, automated reminders, certificate management, audit-ready ISO reports, and append-only audit log. From £29/mo. 14-day trial. No card required.
14-day trial. No card required. Cancel any time.