Elemental Compatibility
Element balance can show where two people move at a similar pace and where differences may create friction.
Synastry Chart
Your Free Synastry Chart Calculator
The AIFATE synastry chart calculator compares two birth charts to show relationship patterns through aspects, house overlays, attraction, communication and emotional needs.
Compare planet-to-planet aspects between two birth charts
Read house overlays, emotional needs and relationship rhythm
Understand attraction patterns, communication themes and growth points
Compare Two Birth Charts
A free synastry chart is most useful when both people have accurate birth dates, birth times and birth places.
What Is Synastry
Understand Relationship Astrology Compatibility
Synastry compares two natal charts to show how two people may experience attraction, emotional safety, communication, friction and support.
Use the chart as a reflection tool. It can highlight relationship patterns, but it should not replace honest conversation or personal judgment.
Create a Free Synastry Chart
Practical Relationship Insights
Why does Synastry Compatibility matter?
Your Synastry Chart helps you understand how two charts interact through attraction, emotional needs, communication patterns, and recurring relationship themes.
Synastry can support more honest conversations by showing where two people may feel aligned, challenged, or invited to understand each other better.
Create a Free Synastry Chart
Giving a lot, but still feeling misunderstood?
You are not alone.
A synastry chart can give you clearer language for emotional needs, communication patterns and recurring relationship themes.
Create a Free Synastry ChartPractical Relationship Insights
Understand Repeating Relationship Patterns
Synastry compares two charts without blame, showing emotional needs, communication patterns and recurring relationship dynamics.
Moon Sign Safety Needs
Moon placements describe what each person needs to feel safe, supported and emotionally understood.
Vertex and Turning Points
Vertex contacts can point to moments or connections that feel important, intense or direction-changing.
Venus and Validation
Venus placements describe affection style, values and the ways each person tends to feel appreciated.
Synastry Aspects
Aspects between charts show attraction, pressure, ease, repetition and opportunities for growth.
Descendant Patterns
The Descendant can show partner traits you notice quickly and relationship patterns that invite growth.
Understand Emotional Needs and Communication Patterns
Use both charts to read needs, timing themes and emotional responses with more context.
See How Two Charts Interact
Create a Free Synastry ChartFAQ