Zodiac Compatibility Calculator
Calculate zodiac compatibility for two star signs or birthdays. Free online love and friendship score with element and modality reasons and a shareable card.
What next?
Found it useful? Share Zodiac Compatibility Calculator
Free, no sign-up, works in the browser — send it to a friend or add it to your site.
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Part of the toolkit
How to use Zodiac Compatibility Calculator
- 1Pick a zodiac sign for each person, or enter both birthdays.
- 2Optionally add nicknames for your card.
- 3Tap Check compatibility.
- 4Read the love, friendship, communication and trust scores and share your card.
Frequently asked questions
How is the compatibility score calculated?▾
It combines the angle between the two signs (same sign, trine, sextile, square, opposition and so on) with how their elements and modalities get along.
Which signs are most compatible?▾
Signs of the same element (trines) and complementary elements like Fire with Air or Earth with Water usually score highest.
Can I use birthdays instead of signs?▾
Yes. Switch either person to Birthday and the tool works out their sun sign.
Are the nicknames shared?▾
No. Nicknames only appear on your own card image; the share link only contains the two sign numbers.
Is zodiac compatibility real?▾
Astrology is not scientifically proven. Treat the result as a fun conversation starter.
Embed Zodiac Compatibility Calculator on your website▾
Paste this snippet into your page. The embedded tool runs in your visitor's browser and shows a small “Powered by clkr.work” link.