Reference · Compatibility
Zodiac Compatibility
All 144 combinations across the zodiac. Pick your sign a sign on the left axis and your sign b sign on the top.
Sun-sign compatibility is the entry point of relational astrology — what happens when one identity pairs with another. The 144 pages below describe each pairing in practitioner voice: what each sign actually wants, where the chemistry harmonises, where it predictably strains, and the integrative work the pairing tends to ask for. None of the pairings are bad; some require more conscious work than others.
Pick your sign on the left axis and your partner's sign on the top axis. Each page synthesises element interaction, modality compatibility, ruler relationship, and the friction-and-harmony dynamics specific to that pair. For deeper chemistry — Moon-Moon, Venus-Mars, composite charts — see the synastry tool.
Common questions
About compatibility combinations
What does zodiac compatibility actually measure?
Sun-sign compatibility is the most simplified version of synastry — it tells you what happens when the two people's solar identities pair. Real synastry compares the entire charts: Moon-Moon, Venus-Mars, descendants, composite midpoints, and the dasha or transit overlay between the partners. The 144 pages here cover the Sun-sign level diligently because it's the entry-point question and because the Sun-sign pattern actually does describe meaningful relational chemistry — but it's the first lens, not the last word.
Which signs are most compatible with each other?
Classical readings rate same-element pairings (fire-fire, earth-earth, etc.) as highly compatible because the partners share temperament and trine pairings (signs 120° apart) as exceptionally compatible because the elements harmonise structurally. Square pairings (signs 90° apart) carry productive friction; opposition pairings (signs 180° apart) carry powerful complementarity that can also produce burnout. The classical advice is that no element pairing is wrong; the partners' willingness to be changed by each other matters more than the geometry.
Are some pairings simply bad?
No — the classical sources don't read any pairing as inherently doomed. They do read certain pairings as requiring more conscious work than others. Most chronic friction in any pairing is some version of one partner asking the other to be a different sign. The compatibility pages here name the predictable friction patterns precisely so partners can recognise them when they appear and address them rather than blame each other.
Should I avoid certain signs based on my Sun sign?
No. Partner-screening by Sun sign is one of the great misuses of astrology. The Sun-sign reading describes structural chemistry, not destiny; it doesn't capture the Moon-Moon dynamic, the Venus-Mars chemistry, the houses each partner falls in for the other, or the work both partners are willing to do. Use these pages as a reference for understanding the dynamic if and when it arises in a real relationship, not as a filter for whom to date.
Why does the order of the pair matter? Is Aries-Cancer different from Cancer-Aries?
On the Sun-sign level, no — the chemistry is the same regardless of order. The 144-cell matrix shows both directions for navigation convenience. In full synastry, however, who is the Sun and who is the Moon (or whose Venus aspects whose Mars) does change the reading; the asymmetry shows up at the chart level rather than at the sign level. These pages cover the symmetric Sun-sign reading.