Marriage Compatibility Calculator

Compare two birth charts using the traditional eight-factor Ashtakoota Guna Milan framework. Enter each person's birth date, local birth time and time zone to calculate a score out of 36.

Enter birth details

Use the local date and time recorded for each birth. Names and birthplace text are optional and stay in this browser.

Person A

First person's birth details

Name Optional Date of birth Local birth time Use the time at the birthplace.

I don't know the exact birth timeWe'll only calculate if the Moon sign and Nakshatra stay unchanged across the local birth date.

Country of birth Optional City / birthplace Optional Birth time zone Choose the IANA time zone at the birthplace, not necessarily your current time zone.

Person B

Second person's birth details

Name Optional Date of birth Local birth time Use the time at the birthplace.

I don't know the exact birth timeWe'll only calculate if the Moon sign and Nakshatra stay unchanged across the local birth date.

Country of birth Optional City / birthplace Optional Birth time zone Choose the IANA time zone at the birthplace, not necessarily your current time zone.

Scoring convention

Person A and Person B stay the default labels. Select a traditional role direction only if you want the direction-specific Varna, Yoni and Gana tables applied.

Matching orientation

No names or birth details are sent to a server by this widget. The city and country fields are for your own report; the calculation uses the selected time zone and birth time.

How does Vedic marriage matching work?

Ashtakoota Guna Milan is a traditional Hindu astrology method that compares two people's Moon signs (Rashi) and birth stars (Nakshatras) across eight categories. The points add up to a maximum of 36. Different astrology traditions and software tools may use different tables, exceptions or calculation settings, so scores from different calculators are not always directly interchangeable.

The eight Kootas and their maximum points

Varna — 1 point. A traditional temperament classification based on Moon sign.
Vashya — 2 points. A traditional sign-class relationship.
Tara — 3 points. A comparison of the two birth-star counts.
Yoni — 4 points. A traditional symbolic animal pairing derived from Nakshatras.
Graha Maitri — 5 points. Natural friendship between the rulers of the Moon signs.
Gana — 6 points. The Deva, Manushya and Rakshasa Nakshatra classifications.
Bhakoot — 7 points. The relationship between the two Moon signs.
Nadi — 8 points. A three-group Nakshatra classification used in traditional matching.

How should you read the score?

Some traditions commonly cite 18 out of 36 as a reference threshold, but there is no single interpretation accepted by every astrologer or community. Review the individual Koota scores and consult a qualified practitioner if traditional guidance matters to you. A total alone does not establish whether two people will have a successful marriage.

What this calculator does not assess

This tool calculates only the eight Ashtakoota components. It does not generate a complete Kundli or assess Manglik Dosha, planetary houses, Navamsa charts, Dasha periods, or the full set of regional marriage-matching traditions. Names, birthplace text and gender are not required to determine the Moon-based inputs.

Make relationship decisions with care

Respect, trust, communication, shared expectations, family boundaries, finances and long-term goals are important real-world topics to discuss with a prospective partner. Astrology is a cultural and spiritual practice; this calculator should not replace mutual conversation or personal judgment. The historical Varna labels are part of the selected astrological rule set and do not describe anyone's social worth or ability.

Frequently asked questions

What is a Marriage Compatibility Calculator?

It compares two sets of birth details using a defined matching method. This calculator uses the eight-part Vedic Ashtakoota framework and displays a traditional score out of 36.

Is 18 out of 36 a good score?

18 is a commonly cited traditional guideline in some schools, but practices and interpretations vary. A score is not a scientific measure or a guarantee of relationship success.

Why do I need the birth time zone?

The same local clock time corresponds to different UTC instants in different time zones. Historical daylight-saving rules can also affect conversions. Choose the IANA time zone for the place and date of birth.

Can I calculate compatibility without a birth time?

Sometimes. The calculator samples the local birth date and proceeds only when the Moon sign and Nakshatra remain stable in its samples. Otherwise, an exact birth time is needed to avoid reporting an uncertain match.

Why might my result differ from another website?

Calculators may use different ephemerides, ayanamsa implementations, traditional tables, role direction, exception rules or rounding. This widget uses an approximate Meeus-based lunar calculation and a documented Lahiri-style ayanamsa approximation; boundary cases should be checked with a high-precision ephemeris.

Does a high score guarantee a happy marriage?

No. The score is a traditional astrological interpretation, not a validated prediction. It should never replace direct conversations, practical compatibility, consent or independent judgment.