Emotional safety
How needs, instinct, recognition, and care may move between two people.
Free synastry calculator
Compare two charts. See the conversation between them.
A relationship is more than a compatibility score. Calculate the strongest cross-chart connections, then read where you naturally meet, where you carry charge, and what helps the connection stay honest.
What a synastry chart can help you explore.
Communication
How conversations, misunderstandings, explanations, and repair may take shape.
Attraction and friction
Where the connection carries ease, desire, difference, or productive tension.
No single aspect decides a relationship.
Synastry is a map of symbolic patterns, not proof of compatibility or a prediction of a relationship's future. Full charts, real-world circumstances, values, consent, and choices matter more than a score.
Synastry questions
Do I need both birth times?
Birth times make houses and angles more precise. The calculator explains the chart using the details available.
What is the difference between synastry and a composite chart?
Synastry compares two natal charts; a composite chart explores the relationship as a shared symbolic pattern.
Can synastry predict whether a relationship will last?
No. It can offer language for patterns to discuss, not a guarantee or verdict.