Free Embeddable Ring Size Calculator
Add a working ring size calculator to your own site with one line of HTML — free, no account required.
Live preview
Configure your embed
Pick a starting mode, a brand accent, and a width — the preview and code update instantly.
Copy the code
Paste this anywhere in your page's HTML — no script tags, no build step, no dependencies.
Copyable attribution
Prefer crediting the tool in prose — on a product page or sizing guide — instead of, or alongside, the in-widget line? Use this.
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.
Need something custom?
Starting mode, brand accent, and width are all self-serve in the configurator above. For anything else — a locale variant or a question about embedding it — see our Contact page — we read every email.