1. Acceptance of Terms
By accessing and using Online Ruler (the “Service”), you agree to be bound by these Terms of Service. If you do not agree with any part of these terms, please do not use the tool.
2. Measurement Accuracy & Disclaimer
Online Ruler provides virtual on-screen measurement tools designed for everyday utility, crafting, hobbyist sizing, and UI design references.
Important Disclaimer: Screen measurement precision depends on user calibration, display hardware characteristics, operating system scaling, and browser zoom levels. Do not rely on screen rulers for mission-critical, surgical, aeronautical, architectural construction, or high-tolerance industrial engineering applications where certified calibrated steel calipers or micrometers are legally required.
3. Privacy & Local Operation
The measurement functionality of the Service runs entirely client-side in your web browser. No measurement dimensions, coordinates, or calibration data are transmitted to our servers or shared with third parties. Calibration preferences are stored strictly in your browser's local storage.
Please refer to our Privacy Policy for details regarding how we handle standard website analytics and advertising technologies.
4. Intellectual Property
All code, interfaces, visual styling, diagrams, and educational text on Online Ruler are protected by applicable intellectual property laws. You may use this tool freely for personal and commercial measurement purposes.