Synastry Calculator: Real-Time Compatibility From Two Birth Charts
Synastry compares two natal charts planet-by-planet to reveal the gravitational dynamics of a relationship. Enter both birth datums below to see every cross-chart aspect within standard orbs.
Sun-sign pair interpretations
The calculator above runs your real cross-chart synastry. For sun-sign-keyed relationship archetypes — the patterns common to every Aries × Leo, Cancer × Capricorn, or Scorpio × Pisces pairing — browse our hub of 132 ordered pair pages, each interpreted from both directions.
Browse all 132 synastry pair pages →Related calculators
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