When it comes to love, trust, and long-term harmony, relationship compatibility is everything. While modern dating apps use preferences and personality tests, astrology dives deep into your soul by analyzing your birth chart. This ancient system helps determine whether two people are truly meant for each other.
If you've ever wondered whether your relationship was written in the stars, you’re about to find out how to check relationship compatibility using birth charts the right way.
What Is a Birth Chart?
A birth chart (also called a natal chart) is a celestial map of where all the major planets were positioned at the exact time and place of your birth. It’s like a cosmic fingerprint—completely unique to you.
This chart reveals your core personality traits, emotional needs, relationship style, communication habits, and much more.
Why Birth Charts Matter in Relationships
Astrology sees relationships as a dance between energies. When two birth charts are compared, astrologers can find:
Emotional alignment
Mental understanding
Sexual chemistry
Shared life goals
Areas of conflict or misunderstanding
By checking compatibility through astrology, you can better understand your partner and improve the way you relate to one another.
Synastry: The Art of Chart Comparison
The process of comparing two birth charts is known as synastry. In synastry, an astrologer examines how the planets in your chart interact with the planets in your partner's chart.
These interactions are called aspects. Aspects can be harmonious (bringing ease and support) or challenging (causing tension or lessons to be learned).
Key Elements to Analyze for Compatibility
When checking relationship compatibility, here are some core components astrologers evaluate:
1. Sun Sign Compatibility
This is the most basic level. The Sun sign governs your core identity. While helpful, relying solely on Sun sign compatibility is surface-level. A deeper analysis requires looking beyond this.
2. Moon Sign & Emotional Needs
Your Moon sign represents your emotional world—what you need to feel safe, secure, and nurtured. Compatibility here shows whether your partner “gets” your feelings and how you both handle emotions.
3. Venus and Mars – Love & Passion
Venus reveals your romantic style, affection, and what you find attractive.
Mars shows your sexual energy and how you pursue your desires.
When Venus and Mars are well-aligned between charts, there's strong physical and romantic chemistry.
4. Ascendant (Rising Sign)
This is how you project yourself to the world and your general approach to life. Matching or compatible Ascendants can lead to smoother day-to-day interactions.
5. Mercury – Communication Style
Mercury rules communication. If your Mercury signs clash, misunderstandings are more likely. If they align well, conversations flow easily.
Composite Chart – The Relationship’s Own Chart
Aside from comparing two charts, astrologers also create a composite chart. This is a single chart made from the midpoints of both partners' planets.
It represents the energy of the relationship itself—almost like it’s a third entity with its own personality. The composite chart can show the purpose of the relationship and its strengths and challenges.
Vedic Astrology Approach (Jyotish)
In Vedic astrology, commonly practiced in India, relationship compatibility is known as Kundli Milan. It involves comparing Gunas—eight different attributes—with a score out of 36.
These include:
Mental compatibility
Health and longevity
Family and children
Physical and emotional compatibility
The higher the score, the more compatible the couple is considered. But even a lower score doesn’t mean the relationship is doomed—it highlights areas that may need work.
You can check relationship compatibility with this tool, which uses Vedic principles to evaluate matches accurately.
How to Get Started with Your Compatibility Check
Step 1: Get Both Birth Charts
You’ll need accurate birth data for both individuals:
Full name
Date of birth
Time of birth (very important)
Place of birth
There are many free online tools that can generate this chart instantly.
Step 2: Analyze the Aspects
Either consult an astrologer or use trusted online platforms that break down the aspects for you. Look for strong connections between:
Moon to Moon
Venus to Mars
Sun to Ascendant
Mercury to Mercury
Step 3: Consider the Big Picture
No relationship is perfect. Even a few challenging aspects can be worked through with mutual understanding and effort. Astrology doesn't seal your fate—it empowers you to make better decisions.
Benefits of Using Astrology for Relationship Growth
Improves communication
Increases empathy and understanding
Helps manage expectations
Highlights areas for growth
Supports emotional healing
Astrology isn’t just about matching—it’s about mastering your relationship together.
Final Thoughts
Understanding how to check relationship compatibility using birth charts can offer eye-opening insights into your connection. Whether you're newly dating or have been together for years, it’s a powerful way to deepen your bond and align with your partner on a soul level.
