Loading marriage calculator…
Marriage calculator
Built for the long haul, not just the spark
A marriage is a different question than a first date. This calculator reads for endurance.
A true marriage calculator looks past chemistry to the qualities that hold a partnership together over decades: emotional security, stability, communication and the ability to move through conflict with grace. Using real synastry astrology, this tool builds both birth charts and weights your score toward Saturn and Jupiter contacts (long-term commitment) and Moon connections (emotional attunement) — the classical markers of a lasting union.
The result is a marriage-compatibility percentage plus a breakdown of your strongest and most tender areas — a thoughtful starting point for any couple thinking about forever.
What we measure
The four pillars of a lasting marriage
Long-term stability
The commitment and shared-values glue that carries a marriage through change. Weighted most heavily of all.
Emotional security
How safe, understood and cared-for you feel with each other — the emotional home a marriage is built on.
Communication
How easily you understand each other and work things out — the daily fabric of living together well.
Harmony
How you handle friction. Couples who repair conflict gently build far more resilient marriages.
More free astrology tools