Western Astrology

Zodiac Compatibility

Every sign combination across all 12 signs — how pairs sit together and where they pull against each other.

Western astrology describes twelve signs — Aries through Pisces — each shaped by an element (fire, earth, air, or water) and a modality (cardinal, fixed, or mutable). Compatibility reads how two charts interact: do the elements reinforce each other, or introduce useful friction? Does one sign’s fixed quality steady the other’s restlessness, or stall it?

In romantic relationships, the most commonly harmonious pairings are within the same element — two fire signs share drive and directness; two water signs share emotional attunement. But same-element pairings can also amplify each sign’s blind spots. Cross-element pairings introduce contrast: air and fire tend to energise each other; earth and water tend to ground and steady each other. Neither is universally better — the question is whether the contrast is generative or draining.

In work and creative partnerships, modality often matters as much as element. Cardinal signs initiate; fixed signs sustain; mutable signs adapt. A cardinal-fixed pair can be productive — one starts, one follows through — or it can stall if both need to lead. These pages read each combination on its own terms, noting where pairs sit easily together and where they create recurring friction.

Sun-sign compatibility is one layer. A full picture reads the complete natal chart — Moon, rising sign, and the planetary placements that shape how each person actually shows up. The pairings below are grounded in chart structure, not simplified scores.

Browse by sign

Pick a sign to see all 12 of its pairings.

Sign-pair deep dives

Full analyses with Western astrology and BaZi tradition.

Also worth reading

For fun and for thinking things over. Not advice about health, money, or the law.