What the eight kootas measure
Ashta Koota Milan compares the Moon signs and nakshatras of two people across eight categories, worth 36 points in total. Varna (1) is spiritual compatibility; Vashya (2) is mutual influence; Tara (3) is birth-star harmony and wellbeing; Yoni (4) is physical compatibility, based on the animal symbol of each nakshatra; Graha Maitri (5) is mental friendship, from the relationship of the two Moon-sign lords; Gana (6) is temperament (Deva, Manushya, or Rakshasa nature); Bhakoot (7) is emotional bonding from the Moon signs' positions; Nadi (8) is health and hereditary compatibility.
How to read the score
Tradition reads the bands as: below 18, not recommended; 18 to 24, average but acceptable; 24 to 32, very good; 32 to 36, excellent. But the number is the beginning of the conversation, not the end. Professional astrologers also weigh Mangal dosha (see our Mangal dosha checker), the 7th house and its lord, Venus and Jupiter, the Navamsha chart, and planetary periods (dashas). Two people with 20 gunas and strong charts are routinely considered better matched than 30 gunas with afflicted ones.
Why this calculator is approximate
A true janma nakshatra is the Moon's position at the exact birth moment, which needs date, time, and place. With date alone, this tool uses traditional Sun-based date ranges for the 27 nakshatras (each spans about 13.3 days starting around April 14 for Ashwini). That is the same approximation used by popular date-based nakshatra tables. If you know the real nakshatras, select them directly for a proper koota computation.
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