Terms & Conditions

1. Agreement to these terms

By using this website you agree to these terms. If you don’t agree with them, please don’t use the site. They apply to everyone who visits, and no account or signature is involved.

2. What the service is

Online Ring Size provides a free ring size calculator, conversion charts covering the major national sizing standards, a printable ring sizer, and written guides on measuring ring size. Everything is free to use, with no account and no payment.

3. Permitted use

You may:

• use the tool and charts for personal and commercial purposes;
• print the printable ring sizer and the charts for your own use or for use in your shop or workshop;
• link to any page on the site.

You may not:

• copy substantial parts of the written guides, page copy or design and republish them as your own;
• scrape the site at a volume that degrades it for other people, or attempt to interfere with, overload or gain unauthorised access to it;
• present the tool as your own product, or remove attribution where it is displayed;
• use the site for anything unlawful.

4. Accuracy, and the limits of it

This is the section that matters. The sizes this site produces areestimates. We work hard on them — every size is derived from the relevant published standard rather than copied from a table, and every result is shown with a stated accuracy range — but an on-screen measurement has physical limits that no software removes.

The result depends on things we cannot see or control: how accurately you calibrated your screen, whether you held the reference object flat, your screen’s condition and curvature, browser zoom, the time of day, the temperature of your hands, the width and interior profile of the ring you eventually buy, and the tolerances of the workshop that makes it. Ring sizes also differ between your two hands and between fingers on the same hand.

So: use this as guidance, not as a guarantee. For an expensive ring, a ring that cannot be resized, or a ring that cannot be returned, have the finger measured on a steel mandrel by a jeweller before ordering. We say this throughout the site because we mean it, not to cover ourselves.

5. No warranty

The site is provided “as is” and “as available”, without warranties of any kind, whether express or implied, including implied warranties of merchantability, fitness for a particular purpose, accuracy, and non-infringement. We don’t warrant that the site will be uninterrupted, error-free, or available at any particular time.

6. Limitation of liability

To the fullest extent permitted by law, we are not liable for any loss or damage arising from your use of the site or from reliance on a size it produced — including the cost of a ring that does not fit, resizing charges, return postage, or any indirect or consequential loss.

Nothing in these terms excludes or limits liability where it would be unlawful to do so, including liability for death or personal injury caused by negligence, or for fraud. Some jurisdictions do not allow the exclusion of certain warranties or liabilities, so parts of the two sections above may not apply to you; your statutory consumer rights are unaffected.

7. Third-party links and services

Some pages link to other websites, and the contact form is delivered through a third-party form relay. We don’t control those services and are not responsible for their content, availability or practices. How the contact form handles what you submit is set out in the privacy policy.

8. Intellectual property

The written guides, page copy, layout, design and code of this site belong to Online Ring Size. The sizing standards themselves — ISO 8653, JIS S 4700, NBR 16058, the US trade scale, the British Wheatsheaf letter scale and the rest — are the work of their respective standards bodies and are referenced here as facts, not claimed as ours. Names of countries, currencies and standards are used descriptively.

9. Changes to these terms

We may update these terms as the site changes. The date at the top of this page shows when they were last revised, and continuing to use the site after a change means you accept the revised terms.

10. Contact

Questions about these terms go through the contact form.