Zodiac sign compatibility

Zodiac sign compatibility: what it is for

Pick two signs and see how they match: the aspect they form in the zodiac (conjunction, sextile, square, trine, quincunx or opposition), the affinity of the fire, earth, air and water elements, the cardinal, fixed and mutable modalities and an affinity score, with a light description of the relationship.

Everything is calculated in your browser, with no sign-up and without sending your birth date to a server. Astrology is a cultural tradition with no scientific backing: use it for fun.

How to use

1. Pick your sign.
2. Pick the other person's sign.
3. See the affinity and the description of the match.

When to use it

• A fun game for couples and friends.
• Content for social media.
• Curiosity about astrology.

Frequently asked questions

How is compatibility calculated?

The tool follows traditional astrology: it counts the distance between the two signs in the zodiac and sees which aspect they form. Signs of the same element (trine) are usually seen as the most compatible, followed by elements that complement each other (sextile). Squares and quincunxes point to bigger differences that call for more talking.

Which elements go together?

Fire (Aries, Leo, Sagittarius) goes with Air (Gemini, Libra, Aquarius), because air feeds fire. Earth (Taurus, Virgo, Capricorn) goes with Water (Cancer, Scorpio, Pisces), because water nourishes earth. Signs within the same element also get along very well.

Can a couple with 'incompatible' signs work out?

Of course. Astrology has no scientific backing, and a relationship depends on respect, communication and values, not on signs. Take the result as a game and a conversation starter.

Is it really free?

Yes, 100% free. No sign-up, no subscription and no usage limits. All Tools123 tools are free and run right in your browser.

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