Disclaimer

1Digital Screen-Based Measurements

Online Ruler is a browser-powered measuring tool that enables users to estimate object lengths using an on-screen digital ruler. The precision of measurement readings depends directly on your device hardware, physical screen dimensions, native display resolution, system scaling settings, browser zoom ratios, and the accuracy of the calibration method performed. While we make every engineering effort to provide an accurate measuring interface, we cannot guarantee that measurements will be 100% physically exact or identical to readings obtained with laboratory-certified physical rulers, vernier calipers, or precision laser tools.

2Screen Calibration Is Mandatory

To achieve accurate 1:1 real-world physical scale alignment, users must calibrate their display screen prior to measuring objects. Pre-configured device presets and automatic screen detection serve solely as approximate baselines based on standard hardware profiles. Pixel densities and scale rendering frequently vary between individual models, operating systems, and display drivers. Users are responsible for verifying measurement results whenever accuracy is required.

3Not a Substitute for Professional Instruments

Online Ruler is not designed or certified as an industrial, medical, or legal metrology instrument. Do not rely on measurements from this website as the sole basis for:

• Life safety assessments or structural load calculations
• Precision engineering and machining with tight manufacturing tolerances
• Medical diagnostics, surgical planning, or clinical dosage calculations
• Commercial transactions or trade settlements based on legal weights and measures
• Industrial fabrication, manufacturing, or quality assurance testing
• Architectural construction, building surveying, or electrical engineering
• Any decision requiring legally verified or certified precision

For any of the critical applications listed above, always use certified physical measuring tools and standardized metrology instruments.

4Website Information & Guides

We strive to keep the documentation, calibration tutorials, and measuring guides on Online Ruler accurate, relevant, and helpful. However, we do not warrant that all content is completely comprehensive, error-free, or continuously up-to-date. Content provided across the site should never be construed as official engineering, legal, medical, or financial advice.

5Third-Party Advertisements & External Links

Online Ruler may display third-party advertisements (such as Google AdSense) and links to external internet resources. We do not endorse, guarantee, or assume liability for the accuracy, safety, quality, or legitimacy of products, services, or claims advertised by third parties. Any transactions or interactions with external entities remain strictly between the user and the respective third-party provider.

6Website Availability & Performance

We make every reasonable effort to maintain optimal web application uptime and responsiveness, but we cannot warrant that the service will operate without interruptions, server glitches, or browser incompatibility. Features may be updated, altered, or temporarily retired at our discretion.

7User Responsibility

Users are solely responsible for:

• Using the digital measuring tool appropriately and lawfully
• Ensuring device hardware and browser software operate without distortion or unintended zoom levels
• Executing proper calibration using a standard reference card
• Independently double-checking and verifying measurements when accuracy matters
• Employing physical, certified measuring tools whenever critical tasks require precision

8Modifications to This Disclaimer

We reserve the right to revise or update this Disclaimer at any time. Any changes will be published directly on this page alongside an updated revision date. Your continued use of the website following revisions constitutes acceptance of the modified disclaimer.

9. Contact Us

If you have any questions or feedback regarding this disclaimer or the appropriate use of Online Ruler, please contact us via our official support page: https://penggarisonline.id/en/kontak