By using Régua Digital — the actual size online ruler for measuring centimeters and millimeters on screen — you agree to these Terms.
1. Free tool, provided "as is"
The service is provided "as is", free of charge, without express or implied warranties of absolute accuracy, uninterrupted availability, or fitness for a particular purpose. We maintain the tool on a best-effort basis; it may contain errors and may be temporarily unavailable for maintenance.
2. Your calibration responsibility
Every screen has a different pixel density. Users are responsible for calibrating properly for exact physical accuracy: select your exact device model, use auto-detect, or calibrate with a standard card before measuring. Do not use the ruler for safety-critical, precision-engineering, medical-dosage, or industrial-cutting applications without confirming with a certified physical instrument.
3. Permitted use
You may use the ruler to measure rings, feet, shoes, small objects, and layouts, without limits and without an account. You may not attempt to exploit, scrape abusively, overload the infrastructure, or remove calibration warnings to mislead others about measurements.
4. Intellectual property
The code, design, and copy of Régua Digital are protected. You may freely share links, but you may not republish the content as your own or imply official partnership without permission — for partnerships, see our contact page.
5. Limitation of liability
To the maximum extent permitted by law, we are not liable for direct or indirect damages arising from the use of, or inability to use, the tool — including inaccurate measurements caused by missing calibration.