Lahiri ayanamsa · Whole Sign houses · Node type: Mean node
Ascendant basis: our Lagna follows a slightly different convention from Drik's, agreeing within about 0.3 degrees. A birth very close to a sign boundary can show a different rising sign. Planets and Panchang elements agree to under one arc-minute.
Dasha timing: our Vimshottari Dasha period boundaries agree with Drik's within a few days, not to the exact day. This comes from two documented sources: a tiny difference in the birth Moon's measured position that compounds across the full 120 year cycle, and a different classical year length the two engines use to lengthen each period (we use 365.25 days, Drik uses the sidereal year of about 365.256 days).
Cross-check these values against Drik Panchang for the same date, time, and place.
Guna Milan, also called Ashtakoot matching, is a traditional Vedic method for comparing two people's birth charts across eight separate factors, each worth a share of a 36-point total. This calculator computes the Guna Milan score for two people and shows the breakdown behind it.
Both people's birth details are sent to VedicShala's astrology calculation provider, which computes each person's Moon Nakshatra and sign and compares them across eight traditional factors, called kootas: Varna, Vashya, Tara, Yoni, Graha Maitri, Gana, Bhakut, and Nadi. Each koota carries its own fixed maximum points, and the eight maximums add up to 36. The calculator reports the combined score out of 36, and the full koota-by-koota breakdown is available in an expandable table.
Traditional practice treats a combined score of 18 out of 36 or higher as generally favourable, a threshold this site takes directly from the calculation provider's own documented convention rather than inventing one. This calculator never renders a "will work" or "will not work" verdict on the relationship; it reports the score and the traditional threshold, and leaves the interpretation to you.
If two people score highly on Tara, Yoni, and Graha Maitri but low on Nadi, one of the higher-weighted kootas, their combined score might land below 18, even though most individual factors matched well. Traditional practice treats this as a signal to look more closely at the specific factors that scored lower, such as Nadi in this example, not as a single pass-or-fail outcome.
Enter both people's date, time, and place of birth into the form above. Both sets of birth details are sent to our astrology calculation provider so it can compute the koota comparison; the provider discards those details afterward and we do not store them unless you choose to save the result to a free VedicShala account. Only enter another person's birth details with their agreement.
Many long, happy marriages carry Guna Milan scores below the traditional 18-point threshold, and the reverse is also true. This is one traditional lens among several ways compatibility gets read, weighing chart factors rather than the countless other things that make a relationship work. Treat the score as a traditional starting point for a conversation, not a verdict on whether a relationship will succeed.