Free Ring Sizer Widget for Your Website
Add our on-screen ring size calculator to your jewelry store, blog or wedding site. Visitors calibrate their screen with a credit card, measure a ring or their finger, and see US, UK, EU and Japan sizes without leaving your page.
Live preview
Embed code
Copy this code into any page that accepts HTML, such as a WordPress Custom HTML block, the Shopify page editor, a Wix HTML embed or a Squarespace code block.
Auto-resize (optional)
The widget reports its height to your page. Add this script once if you want the frame to fit the widget exactly instead of using the fixed height above.
Who the widget is for
- Online jewelry stores, including Etsy and Shopify sellers, who want fewer sizing returns.
- Jewelry, engagement and wedding blogs that explain how to find a ring size.
- Ring sizing guides that need an interactive tool next to their chart.
How the widget works
- Your visitor calibrates the screen by matching a standard credit card, which is 85.6 mm wide.
- They place a ring that fits on the on-screen circle and adjust it to the inner edge, or enter a finger measurement taken with string.
- The widget shows the nearest US, UK, EU and Japan sizes and the inside diameter in millimeters.
- Results are estimates, so shoppers should compare them with your own size chart before ordering.
Terms of use
- The widget is free to use on any website.
- Please keep the visible "Ring size tool by Ring Sizer" credit line. You may add rel="nofollow" to the link.
- The widget loads no analytics, ads or tracking pixels, and it does not use cookies or local storage.
- We may improve the tool over time; the embed address stays the same.
Frequently asked questions
Will the widget slow down my page?
The frame loads lazily, so it only loads when a visitor scrolls near it. It uses one stylesheet and a small script, with no third-party trackers.
Can I change the widget's size?
Yes. The frame fills the available width up to 720 pixels. You can change the height in the code, or add the optional auto-resize script.
How accurate is the widget?
Accuracy depends on calibrating with a real card and aligning the circle carefully. Treat the result as an estimate and confirm the size with the seller's chart or a jeweler.
Does the widget track my visitors?
No. The widget page loads no analytics or advertising scripts and stores nothing in the visitor's browser.
