Vashya koota
Calculate Vashya Koota from both Moon signs and see the mutual compatibility score, the category assigned to each Rashi and how the rule is applied.
- Calculator
- Two birth stars and padas
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What this tool computes
Vashya koota compares the two moon signs and asks whether one is vashya to the other — under the sway of, in the classical phrasing. Each of the twelve signs carries a short list of the signs that fall under it. The tool takes both birth stars, derives the moon sign each one falls in, and checks both lists in both directions. The koota is worth 2 points of the thirty-six. Across all 11,664 possible pairings, 22.2% take both of them.
The part that usually goes unsaid
There is no single vashya rule. There are two structurally different systems, and within the commoner of them there are five ways of turning the same lists into points. One awards the full marks only when the two signs are mutually vashya. One asks only whether the groom’s sign is vashya to the bride’s. One asks the reverse. One accepts either direction. One is graded, awarding both points for mutual and a single point for one-way. Two charts, one agreed list, and the answer can be two, one or nothing depending on which of the five was applied.
The second system abandons the list and sorts the signs into five classes read off a matrix. Three such matrices have been published and they disagree on most cells. Our tables treat the vashya-rashi list as the default for that reason — it is the part every source agrees on — and the rule actually used is printed beside the result rather than folded into the total.
What the result does and does not mean
77.8% of all pairings score nothing here. Losing vashya is the ordinary outcome, not an adverse finding, and it removes 2 points from a total that averages 20.1 out of thirty-six. On its own it cannot carry a score across the conventional accept line unless that score was already sitting on it.
What the result does not describe is either person. Vashya is a relation between two signs, recorded in a table written long before anyone involved was born. It carries no dosha of its own.
Does swapping bride and groom change the score?
Under two of the five rules, yes. The two one-directional readings ask about a specific party’s sign, so reversing the charts can reverse the outcome. Under the mutual rule and the either-direction rule the score is unchanged. This is worth knowing if a report and a calculator disagree by exactly 2 points.
We scored zero on vashya. Is that a dosha?
No. The doshas that stop a matching conversation are nadi and bhakoot, and vashya is not one of them. A zero here is a deduction and nothing more. It is also the commonest result the koota produces.
Do we need birth times for this?
Not for the koota itself. The birth star and its quarter fix the moon sign, and the moon sign is all vashya reads. What a birth time affects is confidence in the star: if the Moon sat near the edge of a nakshatra, the star you were given may be the neighbouring one, and every koota moves with it.