Compatibility Calculator
Real synastry reads two whole charts against each other — not just two Sun signs. Enter both births and see where you harmonise, spark and grow.
Beyond “are our Sun signs compatible?”
Sun-sign compatibility is where most people start and where most calculators stop — but your Sun is a single note in a whole chord. Real astrological compatibility, called synastry, overlays two complete birth charts and reads the aspects between them: your Moon to their Venus, your Mars to their Saturn, and dozens more. That is where chemistry, comfort, conflict and staying power actually live.
This calculator gives you the shape of the connection across four domains. In the Orvela app, that shape becomes a conversation — a reading that names your strengths and your growth edges, and follows how today’s transits touch you both.
Common questions
What is astrological compatibility (synastry)?
Synastry is the comparison of two birth charts to see how they interact. Instead of asking only whether two Sun signs “match,” it looks at the aspects between every planet in both charts — where they harmonise, where they spark, and where they challenge each other to grow.
Is Sun-sign compatibility accurate?
Sun-sign compatibility is a rough first sketch. It ignores the Moon, Venus, Mars and the rest of both charts, which carry most of the real relational signal. Full synastry — comparing both complete charts — is far more revealing, which is what this calculator computes.
Do we both need birth times?
Birth times sharpen the reading, especially for Moon and rising placements that move quickly. The calculator works without them and computes everything that doesn’t depend on time, flagging what an accurate time would add.
What do the four scores mean?
Love reflects romantic and emotional chemistry; Values covers money, security and what you each hold dear; Ambition looks at how your drives and goals align; Wellbeing reflects the day-to-day energy and lifestyle fit between you. Each is computed from aspects between the two charts.
Compatibility by zodiac pair
Start with the Sun-sign pairing, then use the calculator above for the full synastry. These guides show the surface pattern; your two complete charts show the real connection.
Compatibility means one thing on paper — and another between you two
A score names the fit. Orvela reads the whole synastry — every aspect between your charts — and follows how the sky moves you both, day after day.