Why is kundali matching out of 36 points?

Because there are eight factors and they are weighted one through eight: varna 1, vashya 2, tara 3, yoni 4, graha maitri 5, gana 6, bhakut 7, nadi 8. Added together that is 36. The number is arithmetic, not mysticism.

How many gunas out of 36 are needed for marriage?

18 is the number almost every matrimonial site uses, and 18 is simply half of 36. We could not trace it to any classical text, and major traditional publishers use different bands — one leading panchang treats 17 to 20 as merely middling and 0 to 16 as inauspicious. Treat 18 as modern convention rather than scripture.

Is a higher guna score always better?

Not straightforwardly. The weights are uneven, so two couples with the same total can have failed on very different things. A high score that fails on nadi, which alone is worth 8 points, is treated far more seriously than a lower score that failed on varna, worth 1.

Does a 36 out of 36 mean a perfect match?

Within the system, no. Mangal dosha, the Mars affliction, is checked separately and is invisible to the 36-point score, because the score uses only the moon. A couple can score full marks and still be flagged by a separate check.

compatibility · post 2

why a match is scored out of 36

Nby nik · astrolife6 min

36 looks like a sacred number. it's actually just addition.

i.there are eight factors. they're weighted 1, 2, 3, 4, 5, 6, 7, 8.

ii.add those up: 36. that's the whole mystery.

iii.the famous pass mark of 18 is exactly half — and we couldn't find it in any old text.

iv.which matters, because two 24s can mean completely different things.

a total is a summary. summaries lose the thing that mattered.

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the full story — in depth ↓

the eight, and what each is worth

The system is called ashtakoot — "eight factors." Each one is scored, and each one is worth a different amount:

1 — varna. the four traditional varna classes, read off the moon sign. the scoring rule is not neutral and we take it apart here.
2 — vashya. mutual pull, who yields to whom.
3 — tara. luck and health between you.
4 — yoni. physical and sexual temperament.
5 — graha maitri. mental friendship.
6 — gana. temperament class.
7 — bhakut. the household, and whether it grows.
8 — nadi. constitution, health, children.
= 36.

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 = 36. There is no numerological trick underneath it. Someone ranked eight things from least to most important, gave them the numbers one to eight in that order, and the total fell out.

Which tells you something useful straight away: the numbers are the ranking. Nadi isn't worth 8 because it's complicated. It's worth 8 because whoever built this thought it was the most important one. Varna is worth 1 for the opposite reason.

In friend terms: the scoresheet isn't neutral. It's an argument about what matters in a marriage, written as arithmetic. And you're allowed to disagree with the argument.

where 18 comes from — and doesn't

Every matrimonial site in India will tell you the same thing. Shaadi.com puts it plainly to its own users: if more than 18 gunas of 36 match, the couple is said to have auspicious compatibility.

We went looking for the source of that. We didn't find one.

No classical verse we could locate specifies 18. And the bands people quote around it are not even agreed between the leading authorities:

the common online version — under 18 not advised · 18–24 acceptable · 25–32 very good · 33–36 excellent.
drik panchang, one of the most careful traditional publishers — 31–36 excellent · 21–30 very good · 17–20 middling · 0–16 inauspicious. And it shifts those again if bhakut fails.

Look at what that disagreement implies. If the cut-point were fixed in a text, it wouldn't wander between 16, 17 and 18 depending on who you ask. A rule with a real textual origin doesn't drift like that.

The likeliest explanation is the boring one: 18 is half of 36. It's a clean pass mark, it's easy to explain to a family, and it survived because it's memorable.

We'd rather you hear that from us than discover it later. The system is genuinely old and genuinely careful. The pass mark bolted onto it is neither.

why two 24s aren't the same 24

This is the practical consequence, and it's the reason we don't put a single number in front of you and stop.

Say two couples both score 24 out of 36. Twelve points missing each. Here's what "missing twelve" can actually look like:

couple A — lost all 8 of nadi, plus 4 elsewhere. In the tradition, that is the single most serious thing that can go wrong. Some practitioners treat an unfavourable nadi as overriding the total outright — Drik Panchang says a poor nadi can render even a 28-point match inauspicious.
couple B — lost 7 on bhakut and 5 on graha maitri, and scored full marks on nadi and yoni. Same total. A completely different conversation.

Same headline number, opposite meanings. Which is why the total on its own is close to useless without the breakdown, and why any tool that shows you "24/36" and nothing else is showing you the least informative part of its own calculation.

the score has a blind spot, by design

One more thing before you take any number seriously.

All eight factors come from the moon — each person's birth star and moon sign, both derived from the moon's longitude at birth. No other planet enters the 36.

Which means mangal dosha, the Mars affliction that families check just as anxiously, is mathematically invisible to the score. It involves Mars; the score doesn't look at Mars. Drik Panchang states outright that mangal dosha is excluded from ashtakoot matching.

So the famous "36 out of 36" isn't the end of the process even inside the tradition. It's one of at least two checks, and the other one can't see the first.

In plain terms: the scoresheet answers one question well and is silent on several others. Treat it as a chapter, not the book.

so what is the number good for?

Something real, if you hold it correctly.

It's a structured comparison of two temperaments, done the same way every time, with no room for the reader to flatter you. That consistency is genuinely valuable — it's why this survived while looser methods didn't.

What it is not is a verdict. As far as we can find, no adequately powered study has ever tested whether guna scores predict how marriages actually go — the nearest thing is a 2020 survey of nineteen couples in a minor jyotisha journal, which is far too small to conclude anything in either direction. For a system applied to hundreds of millions of marriages, that is effectively nothing. We'll come back to it in the fourth post, because it deserves its own space.

Our own view, for what it's worth: a score is a good way to start a conversation and a terrible way to end one. The eight lines underneath it are where the information actually lives.

match two charts — see one piece free →

next: the eight things a match measures →

sources

Drik Panchang — ashtakoot tutorial and horoscope match tool (the eight weights; the interpretation bands; nadi priority; mangal dosha excluded)
Shaadi.com — kundali matching (the same eight weights; the 18-of-36 rule as stated to users)
Encyclopaedia Britannica — "Nakshatra"
On the missing pass-mark source: we searched published editions and translations and found no classical verse specifying 18. Stated as a negative result, not a claim of proof.