Terms & Conditions

Use of the tools

The on-screen sizer, calculator, converter and charts on this site are free for personal use. Results are estimates based on the standard chart published here; ring size charts vary by up to half a size between jewellers, and screen or print sizing depends on correct calibration and 100% print scale.

No liability for purchases

We are not a jeweller and are not a party to any purchase you make. Always confirm your size in millimetres with the selling jeweller before ordering — especially engagement, wedding and non-resizable rings. We are not responsible for incorrectly sized purchases made using these tools.

Content and accuracy

We work to keep the chart and guides accurate and review them regularly (see the last-updated line on each page). If you spot an error, tell us via the contact page. Related documents: Privacy Policy and Cookie Policy. About the project: About.