Free Embeddable Ring Size Calculator
Add a working ring size calculator to your own site with one line of HTML — free, no account required.
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Copy the code
Paste this anywhere in your page's HTML — no script tags, no build step, no dependencies.
<iframe src="https://ringsizeconvert.com/embed/calculator/" width="380" height="540" style="border:none;max-width:100%;" loading="lazy" title="Ring Size Calculator"></iframe>
Who this is for
Independent jewelers, wedding-planning blogs, and Etsy or small-batch ring sellers who want to offer visitors a sizing tool without building or maintaining one themselves. The widget works on any site that can render an <iframe> — no JavaScript framework, CMS plugin, or backend required.
The only condition
The widget includes a small "Powered by RingSizeConvert.com" credit link underneath the calculator. Please keep it visible and unmodified — that credit is how this stays free to embed. Beyond that, use it however's useful: on a product page, a sizing-guide page, or your site's footer.
Questions or a custom size?
Need a specific width, a pre-selected default unit, or have a question about embedding it? See our Contact page — we read every email.