Simple and fair rules for using our free ring size calculator
By accessing or using RingCalculator.Online, you agree to these Terms of Service. If you don’t agree, please don’t use the website.
RingCalculator.Online is a free online tool that helps you estimate ring size using screen calibration and multiple measurement methods. All calculations happen in your browser.
You may use our service for personal, non-commercial purposes. You agree not to:
We strive for accuracy, but ring sizing depends on many factors (temperature, knuckle size, ring width, etc.).
To the fullest extent permitted by law, RingCalculator.Online and its operators shall not be liable for any indirect, incidental, or consequential damages arising from use of the service.
The website design, code, and content are owned by RingCalculator.Online. You may not reproduce or distribute without permission.
We may update these terms at any time. Continued use of the service after changes constitutes acceptance of the new terms.
These terms are governed by the laws of the Republic of Cyprus.
Questions? Reach us via our Contact page.
Last updated: December 2025