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Tara Matching Calculator

Tara Koota counts the distance, in nakshatras, from one partner's birth star to the other's — and vice versa — classifying each count into one of nine classical Tara types, five of which are considered auspicious. Worth 3 of the full 36 Ashtakoota points, it's classically read as an indicator of general health and well-being fit between the two.

Ayanamsa: Lahiri (Chitrapaksha) · Rule: count nakshatras from each partner's birth star to the other's (both directions), classify into one of 9 Tara types, score 3 if both directions are auspicious, 1.5 if one is, 0 if neither

Partner 1

Partner 2

Reviewers

Sarah Mitchell, M.A. in Cultural Astronomy & Astrology and Marcus Reynolds, Professional Astrologer & Astronomer

Based on 5 sources
127 people find this calculator helpful

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The Nine Tara Types

Counting forward through the 27 nakshatras and reducing to a 9-step cycle gives: Janma, Sampat, Vipat, Kshema, Pratyari, Sadhaka, Vadha, Mitra, and Ati-Mitra. Sampat, Kshema, Sadhaka, Mitra, and Ati-Mitra are classically auspicious; Vipat, Pratyari, and Vadha are not; and Janma (matching your own birth star exactly) is notably NOT considered auspicious.

Why This Calculator Checks Both Directions

Counting from Partner A's star to Partner B's gives a different Tara type than counting the reverse (since 27 doesn't evenly divide by 9 in a way that makes the two counts always match) — this calculator checks both directions and scores the full 3 points only when BOTH are auspicious, 1.5 when just one is, and 0 when neither is.

A Notable Case: Sharing the Exact Same Nakshatra

If both partners share the identical birth nakshatra, the count in both directions lands on "Janma" Tara — which, somewhat counterintuitively, is NOT classically auspicious for matching purposes, even though it might seem like the ultimate similarity.

Tara Matching Calculator FAQs

What is Tara Koota?
A classical Ashtakoota factor that counts the nakshatra distance between two partners' birth stars (in both directions), classifying the result into one of nine types to assess general health and well-being compatibility.
How many points does Tara Koota carry?
3 of the full 36 Ashtakoota points.
Why is sharing the exact same nakshatra not considered ideal?
It produces "Janma" Tara in both directions, which classical tradition specifically does NOT classify as auspicious, despite seeming like the strongest possible similarity.
How many of the nine Tara types are auspicious?
Five — Sampat, Kshema, Sadhaka, Mitra, and Ati-Mitra — are classically auspicious; Janma, Vipat, Pratyari, and Vadha are not.
What does it mean if only one direction is auspicious?
This calculator scores that case as 1.5 out of 3 points — a mixed result, better than neither direction being favorable but short of the full score both directions being auspicious would earn.

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