Acceptance of terms
By accessing and using ReliabilityCalc (“the Service”), you accept and agree to be bound by the terms and provision of this agreement. If you do not agree to abide by the above, please do not use this service.
- These terms apply to all users of ReliabilityCalc
- By using our calculators, you agree to these terms
- We may update these terms from time to time
- Continued use constitutes acceptance of updated terms
Service description
ReliabilityCalc provides free online tools for reliability and quality engineering: 19 calculators, 7 quality tools, and 3 unit converters, together with formula references, worked examples, and educational content. See the full list of calculators.
Service availability: we strive to maintain 99.9% uptime, but cannot guarantee uninterrupted service. Maintenance windows will be announced when possible.
Use license and restrictions
| Allowed | Prohibited |
|---|---|
| Personal and commercial use | Automated scraping or data mining |
| Educational purposes | Reverse engineering our algorithms |
| Research and analysis | Creating competing services |
| Professional engineering work | Malicious or fraudulent use |
| Sharing results with colleagues | Violating applicable laws |
User responsibilities
- Provide accurate input data for calculations
- Verify results independently for critical applications
- Use professional judgment when applying results
- Respect intellectual property rights
Disclaimer and limitation of liability
The calculations and results provided by ReliabilityCalc are for informational and educational purposes only. While we strive for accuracy, we make no warranties about the completeness, reliability, or accuracy of the information.
| Service disclaimer | Limitation of liability |
|---|---|
| Service provided “as is” without warranties | No liability for damages or losses |
| No guarantee of uninterrupted availability | No responsibility for business decisions |
| Calculations may contain errors or omissions | User assumes all risks of use |
| Results should be independently verified | Maximum liability limited to service cost (free) |
Professional and critical applications
Critical safety notice: for safety-critical applications, life-safety systems, or high-value equipment, you must independently verify all calculations using approved methods and consult with qualified professionals.
| Best practices | Relevant standards |
|---|---|
| Cross-reference with industry standards | IEC 61508 (functional safety) |
| Validate with multiple calculation methods | ISO 14224 (reliability data) |
| Consult subject matter experts | MIL-HDBK-217 (electronic reliability prediction) |
| Document your validation process | IEEE reliability standards |
Privacy and data handling
Your privacy is important to us. Please review our Privacy Policy for detailed information about how we collect, use, and protect your data.
- Calculator inputs are processed in your browser and not stored on our servers
- HTTPS encryption for all communications
- Minimal data collection
- You can request access to or deletion of your data, opt out of analytics, and request data portability
Governing law and disputes
These terms shall be governed by and construed in accordance with applicable laws. Any disputes will be resolved through appropriate legal channels. Preferred resolution: good faith negotiation and mediation.
Severability: if any provision of these terms is found to be unenforceable, the remaining provisions will continue in full force and effect. Entire agreement: these terms constitute the complete agreement.
Questions and contact
If you have questions about these Terms of Service, please contact us:
| [email protected] | |
| Subject line | Include “Terms of Service” for faster processing |
| Response time | We will respond within 5 business days |
Changes to these terms
We reserve the right to modify these terms at any time. Changes will be effective immediately upon posting on this page. Your continued use of the service after any changes constitutes acceptance of the new terms. We encourage you to review these terms periodically.