⚠️ Disclaimer

Effective Date: May 1, 2026  |  Last Updated: May 2026
Please read this Disclaimer carefully before using OnlineRuler.online. By using our website, you agree to the terms of this Disclaimer.

1. General Information Only

The tools and content provided on OnlineRuler.online are for general informational and personal use only. While we strive to ensure the accuracy of all measurement tools, the information and results provided should not be used as the sole basis for critical decisions.

Important: Do not rely solely on our online ruler or measurement tools for professional, medical, legal, construction, engineering, or other precision-critical purposes. Always verify measurements with certified physical tools when accuracy is critical.

2. Measurement Accuracy

Our online ruler uses your screen’s pixel density (PPI) to calculate measurements. The accuracy of our tools depends on several factors:

  • Your screen’s actual PPI (Pixels Per Inch)
  • Browser zoom level (must be at 100% for accurate results)
  • Whether you have performed calibration
  • Display scaling settings on your operating system
  • Physical screen quality and manufacturing tolerances

With proper calibration, our tools can achieve accuracy of approximately 99%. However, we cannot guarantee 100% accuracy in all cases, as screen specifications vary across thousands of device models.

Tip: For best accuracy, always calibrate using the Credit Card Calibration method before use. A standard credit card is exactly 85.6mm wide — this provides a reliable reference point.

3. Not for Professional or Commercial Use

Our tools are not designed or certified for:

  • Medical measurements or diagnosis
  • Engineering, construction, or architectural planning
  • Legal measurements or official documentation
  • Manufacturing or industrial quality control
  • Any purpose where measurement error could cause harm or financial loss

For such purposes, please use certified physical measuring instruments or consult a qualified professional.

4. No Warranties

OnlineRuler.online is provided on an “as is” and “as available” basis without any warranties of any kind, either express or implied, including but not limited to:

  • Warranties of merchantability or fitness for a particular purpose
  • Warranties that the website will be uninterrupted, error-free, or free of viruses
  • Warranties regarding the accuracy, reliability, or completeness of any content

5. Limitation of Liability

To the fullest extent permitted by applicable law, OnlineRuler.online and its operator Muhammad Shakeel shall not be liable for any direct, indirect, incidental, special, consequential, or punitive damages arising from:

  • Your use of, or inability to use, our website or tools
  • Any errors or inaccuracies in measurement results
  • Decisions made based on information from our website
  • Any interruption or cessation of the website or tools

6. External Links

Our website may contain links to third-party websites. These links are provided for convenience and informational purposes only. We have no control over the content, privacy policies, or practices of third-party websites and are not responsible for their content or accuracy.

7. Advertising Disclaimer

OnlineRuler.online displays advertisements through Google AdSense. These ads are provided by Google and are independent of our content. We do not endorse or have control over the products or services advertised.

Clicking on advertisements may take you to third-party websites. We are not responsible for any transactions, content, or practices on those websites.

8. Affiliate Disclaimer

At this time, OnlineRuler.online does not participate in affiliate marketing programs. If this changes in the future, we will clearly disclose any affiliate relationships in accordance with applicable guidelines.

9. Content Accuracy

While we make every effort to ensure the accuracy of our guides, articles, and educational content, information may become outdated or contain errors. We do not guarantee that all content is current, complete, or free from errors. Please verify important information from authoritative sources.

10. Changes to This Disclaimer

We reserve the right to modify this Disclaimer at any time. Changes will be effective immediately upon posting to our website. Your continued use of the website constitutes acceptance of the updated Disclaimer.

11. Contact

If you have questions about this Disclaimer, please contact us at: freeonlineruler@gmail.com

This Disclaimer applies to OnlineRuler.online, operated by Muhammad Shakeel, Pakistan. Last updated: May 2026.