Add a free Cosmea calculator to your site

Give your readers a seven-day astrology calendar, calculated in their browser from their birth date and a partner's Sun sign.

Copy this HTML into a custom HTML block

The frame is responsive, has its own scroll area, and opens the full calculator in a new tab. Keep the visible Cosmea credit and link. Embedding is free; no account, API key or access to readers' dates is needed.

<iframe src="https://cosmealove.com/en/embed/compatibility" title="Cosmea compatibility calculator" width="100%" height="760" loading="lazy" referrerpolicy="strict-origin-when-cross-origin" style="border:0;max-width:640px;border-radius:24px"></iframe>
<p>Calculator by <a href="https://cosmealove.com/en/synastry-calculator?utm_source=embed&utm_medium=referral&utm_campaign=backlink_resources_20261002">Cosmea</a>.</p>

If your editor blocks iframes, link directly to the full calculator. Open the full calculator

Try the calculator

Installation notes

Your site's Content Security Policy must allow https://cosmealove.com in frame-src. Use the supplied markup without a sandbox attribute. If your editor requires sandboxing, use the direct-link fallback instead. The widget sends no birth data to your site and does not use postMessage. Leave the default iframe sandbox unset for ordinary installations.

Visits and successful calculations can be counted using aggregate analytics. Birth dates, signs and timezones are never sent as event parameters. Browser privacy settings may prevent measurement.

Questions about embedding? contato@cosmealove.com