Free Ring Sizing Web Resources
Below you’ll find a selection of ready-to-use calculators, charts, and widgets that you can embed in your e-commerce site, blog, or platform—compatible with WooCommerce, Shopify, Wix, and more. Each tool includes a visible attribution to RingSize.Online to guarantee accuracy, trust, and ongoing improvements.
Safe Integration
All our widgets are privacy-friendly, lightweight and fast. They work on any website without slowing it down or accessing personal data.
Quick Setup
Add any tool with just one line of code. There’s no need for plugins, integrations or advanced configuration. Copy, paste, and go.
More Sales, Less Returns
Benefit from hundreds of positive reviews from customers who used our tools to find their perfect fit. Using our tools means fewer sizing mistakes and fewer returns.
Select a tool
Pick a widget to embed on your store — configure it, then copy the code below.
Convert between all ring size systems.
Convert ring diameter to all major size systems.
Guide users to measure their own finger.
Offer printable PDF guides to measure ring size at home.