Ring size guide for Shopify
By Lucas from Ring Sizer Pro
Help shoppers pick a size before checkout — next to the variant selector.

What to include
- US, UK, EU, JP conversions for international sales
- Finger and existing-ring measurement steps
- Accuracy disclaimer and exchange policy link
- Size labels that match Shopify variants
- Mobile-friendly layout
Where to place it
Directly beside the size variant selector. If shoppers leave the product page for a PDF, help arrives too late.
Chart vs. interactive sizer
- Static chart — good backup reference.
- Interactive sizer — better for gifts, multi-system stores, and high support volume.
Launch checklist
- Add sizing CTA as theme app block near variants
- Confirm CTA on ring products, hidden on others
- Test one product per size system you sell
- Verify only an exact available size match can be applied automatically
- Track measurements and support questions
Ring Sizer Pro does this as a Shopify app block — guided measurement, conversion, and variant handoff.