Choose the source of truth
Use the chart appropriate for the rings you sell. Do not combine labels from unrelated charts without checking the physical measurements. The app matches a measurement to the rows you provide.
Import a simple file
CSV uses the headers label,circumference. Each circumference is a number in millimetres. A JSON import is an array of objects containing those same keys. Keep the original file so you can check the imported rows.
Check labels and boundaries
Use labels that shoppers recognise on your product page. Check duplicate or missing measurements and ensure the chart covers the sizes sold. The current matching logic rejects results outside the chart’s range, with a small boundary tolerance.
Preview and verify
Save your chart, open the preview and check values close to the smallest and largest rows. A plausible numeric result is not physical validation: check it against known ring measurements on real devices.
Put useful guidance on your product page.
Explore Ring Sizer’s chart controls, targeting and measurement methods.
Explore Ring Sizer →