Kundli Matching — Free Calculator + Complete Guide 2026

In millions of Indian families, one number determines whether a marriage proceeds — the Guna Milan score out of 36. A match scoring 28 gets the family’s blessing. A match scoring 16 may be called off regardless of how well the two people know each other. This number, derived from comparing the birth charts of two people using the Ashtakoot system, is the most consequential output of Vedic astrology in everyday Indian life. Understanding exactly how it is calculated, what each of the 8 Kootas measures, what your score actually means and — critically — what the score does and does not tell you about a marriage is the difference between using this system wisely and applying it blindly.

This guide covers everything about Kundli matching — the complete classical framework, all 8 Kootas with individual scores and plain-language explanations, the complete score-band table, Nadi Dosha and Bhakoot Dosha cancellation rules, the Manglik cross-check, how to use the free calculator and the honest answer to the love marriage question. Every section is built to give you information, not anxiety.

What Is Kundli Matching — Complete Definition

Kundli matching (also called Kundali Milan, Horoscope Matching or Guna Milan) is the Vedic astrology practice of comparing the birth charts of two people to assess their compatibility for marriage. The classical basis is the Ashtakoot Milan system — “Ashta” meaning eight and “Koota” meaning category — in which eight specific compatibility factors are evaluated between the two charts and scored on a cumulative scale of 36 points.

The system uses the Moon’s Nakshatra (birth star) position in each person’s chart as the primary reference point. Unlike the general Kundli reading — which uses all 9 planets across 12 houses for a complete life assessment — Kundli matching focuses specifically on the Moon’s placement because the Moon governs the mind, emotions and the quality of interpersonal bonding. Two people’s emotional compatibility, domestic harmony and family dynamics are primarily determined by how their Moon Nakshatras interact.

Kundli matching is known by different names across India:

Important note on regional variation: The North Indian system uses Ashtakoot Milan (8 factors, 36 points) based on the Moon Nakshatra. South Indian traditions — particularly Tamil — use a different 10-Porutham system also based on Nakshatra comparison but with different factors and weightings. VastuIQ’s Marriage Compatibility Calculator uses the Ashtakoot system — the most widely used compatibility system across North India, Maharasthra, Gujarat and the Hindi belt, and the standard for most online compatibility tools.

Classical reference: The Ashtakoot Milan system is described in the Brihat Parashara Hora Shastra (BPHS), with detailed treatment in the Muhurta Chintamani and the Vivaha Paddhati — texts specifically addressing marriage timing and compatibility. The system has been in continuous use in Indian astrological practice for well over a thousand years.

How Guna Milan Works — The Scoring Framework

The Guna Milan system does not compare complete birth charts against each other — it compares the Moon’s Nakshatra position in each person’s chart through 8 specific lenses, each measuring a different dimension of compatibility. Here is the mathematical framework:

• Total maximum score: 36 points
• Number of Kootas (categories): 8
• Each Koota has its own maximum point value (ranging from 1 to 8)
• The two people’s Moon Nakshatras are compared for each Koota
• Each Koota is either fully scored, partially scored or zero depending on whether the Nakshatra pairing is compatible for that dimension
• All 8 Koota scores are added to produce the total Guna Milan score out of 36

The classical threshold is 18 points — half of the maximum. A score below 18 is traditionally considered inauspicious for marriage. A score of 18 or above is acceptable. The higher the score, the stronger the compatibility indication across the 8 dimensions assessed.

What the system is actually measuring: the compatibility of the two people’s Moon Nakshatras across 8 dimensions of human life — from spiritual alignment and temperament match to physical compatibility, health, financial harmony and genetic compatibility. Each Koota captures a different slice of the marriage experience.

All 8 Kootas — The Complete Scored Reference Table

This is the section that matters most for understanding what your Guna Milan score actually means — because a total score of 22 can hide a zero in the most important Koota while scoring well on the others. Knowing which Kootas matter most and what a low score in each specific Koota means is the difference between understanding your match and just reacting to a number.

The most critical insight from this table: Nadi (8 points) and Bhakoot (7 points) together account for 15 of the 36 total points — 42 percent of the entire score. A couple scoring 24 out of 36 with a zero in Nadi and a zero in Bhakoot (score of 24 − 15 = 9 in the remaining 6 Kootas) is in a very different situation from a couple scoring 24 with full marks in Nadi and Bhakoot. The total score alone does not tell the complete story — which Kootas produced the score matters equally.

What Your Guna Milan Score Means — The Complete Band Table

Every couple who completes a Guna Milan check wants to know what their score means in plain terms. Here is the complete score-band guide — what each range indicates, what it suggests for the marriage and what action is appropriate at each level.

The single most important note about this table: The score is a compatibility indicator, not a verdict on whether the marriage will be happy or unhappy. A 28-point match with deep mutual respect, strong communication and shared values can be a significantly better marriage than a 32-point match between two people who are fundamentally incompatible in character. The Guna Milan score assesses astrological compatibility — not love, character, emotional maturity or shared life goals. Use it as one input among several, not as the sole determinant.

Nadi Dosha — The Most Significant Kundli Matching Result

Nadi Dosha is the most feared outcome in Kundli matching — and the most frequently misunderstood. Here is a complete, accurate treatment.

What Nadi Dosha is

Each of the 27 Nakshatras belongs to one of three Nadis — energy channels derived from Ayurvedic medicine:

• Adi Nadi (Vata) — associated with air element, movement, change
• Madhya Nadi (Pitta) — associated with fire element, transformation, intensity
• Antya Nadi (Kapha) — associated with water/earth element, stability, endurance

When both partners share the same Nadi (both Adi, both Madhya or both Antya), Nadi Dosha is formed and the Nadi Koota scores 0 out of 8. When the partners have different Nadis, the Nadi Koota scores 8 out of 8 — full marks.

The classical associations of Nadi Dosha: health challenges in the marriage, difficulty conceiving or complications related to progeny, and in extreme classical interpretations, shortened marital longevity. These are the classical associations — not guaranteed outcomes.

Nakshatra groups by Nadi

If both partners’ Moon Nakshatras fall in the same column, Nadi Dosha is present.

Nadi Dosha cancellation conditions

This is the section almost no competitor publishes. Nadi Dosha has specific classical cancellation conditions that can neutralise or substantially reduce the dosha’s effect:

• Different Moon signs despite same Nadi Nakshatra: If both partners have the same Nadi but their Moon signs (Rashis) are different, many classical authorities consider the Nadi Dosha cancelled or substantially reduced — the same Nadi Nakshatra in two different signs represents sufficiently different energetic expression to reduce the conflict
• Same Moon sign but different Nakshatra within the Nadi: If both partners have the same Moon sign (Rashi) but different Nakshatras within that sign — even if both Nakshatras happen to be in the same Nadi — classical texts consider this a special case with reduced Dosha effect
• Same Nakshatra, same Rashi: Paradoxically, when both partners share the exact same Nakshatra and Rashi (a very rare occurrence), some traditions consider this a special union rather than a Dosha — the complete identity of birth stars creates a different dynamic from the partial same-Nadi match
• Strong 7th house and strong Venus in both charts: When both partners have strong marital indicators in their full Kundli (strong 7th house, well-placed Venus), experienced astrologers often moderate the Nadi Dosha’s predicted effects based on the compensating chart strength

Before concluding that a Nadi Dosha is uncancelled, verify the cancellation conditions above — particularly the first one (different Moon signs), which applies to a significant proportion of same-Nadi matches.

Bhakoot Dosha — The Financial and Family Compatibility Risk

Bhakoot Dosha occurs when the relationship between the two partners’ Moon signs (counted by house number from each other) falls in one of the classically inauspicious combinations. The Bhakoot Koota scores 0 out of 7 when Dosha is present.

Which Moon sign combinations create Bhakoot Dosha

Bhakoot Dosha is formed when the Moon signs of the two partners are in the following relationships counted from each other:

• 2–12 combination: One partner’s Moon sign is the 2nd sign from the other’s (and therefore the other’s is the 12th from the first) — associated with financial loss and family disharmony
• 5–9 combination: One partner’s Moon sign is the 5th from the other’s — associated with difficulty with progeny and relationship with children
• 6–8 combination: One partner’s Moon sign is the 6th from the other’s — the most severe combination; associated with health conflicts and significant life challenges in the marriage

Bhakoot Dosha cancellation conditions

• The 5–9 Bhakoot Dosha is cancelled when both partners’ Lagna (Ascendant) lords are the same planet or are mutual friends
• The 6–8 Bhakoot Dosha is cancelled when both partners have the same Moon sign lord (ruling planet of the Moon sign) — meaning their Moon signs are both ruled by the same planet, even if the signs themselves are different
• All Bhakoot Doshas are moderated when the overall Guna Milan score is high (above 25) — classical authorities note that a high total score compensates for specific Koota deficiencies
• Strong 7th house in both charts compensates for Bhakoot Dosha effects in the relationship domain specifically

Manglik Check — Why It Complements the Guna Milan Score

The Guna Milan score and the Manglik check are two separate and complementary compatibility assessments — one cannot substitute for the other. Understanding how they interact is essential for a complete pre-marriage compatibility picture.

What Guna Milan measures: The Moon Nakshatra compatibility between two people across 8 life dimensions — primarily emotional, temperamental and prosperity compatibility.

What the Manglik check measures: The Mars placement in each person’s birth chart and whether it creates a Manglik Dosha — which specifically affects marital energy, temperament in relationships and the intensity of the martial dynamic between partners.

A couple can have a 28-point Guna Milan score (strong compatibility) while one partner is a high-Manglik (80/100 on VastuIQ’s Manglik Index) and the other is non-Manglik. The Guna Milan score does not capture this Mars-energy differential — it is only visible in the Manglik assessment. This differential can produce the specific domestic friction patterns associated with Manglik Dosha regardless of how well the Moon Nakshatras match.

The integrated VastuIQ approach: VastuIQ’s Marriage Compatibility Calculator checks both the Guna Milan score and the Manglik status of both partners in a single assessment. The Manglik Index scores from both charts are compared — partners within approximately 20 points of each other on the Manglik Index are considered compatible from the Mars-energy perspective regardless of the absolute score level.

For the complete Manglik Dosha guide including the VASTUIQ Manglik Index scoring system: Manglik Dosha — Complete Guide 2026. To check your individual Manglik score: VastuIQ Manglik Calculator.

Free Marriage Compatibility Calculator — How to Use It

VastuIQ’s free Marriage Compatibility Calculator at vastuiq.com/astrology/marriage-compatibility-calculator gives you the complete Guna Milan score with Manglik cross-check in under 2 minutes. Here is exactly what it does and what you need.

What you need for both partners

• Date of birth — day, month, year for each partner
• Time of birth — as precise as possible. For Guna Milan specifically, the Moon’s Nakshatra position is the critical variable. The Moon changes sign every 2.5 days and Nakshatra every approximately 54 hours — meaning a birth date alone is usually sufficient to identify the Moon Nakshatra correctly, but the birth time is needed to confirm the Nakshatra Pada and for the Manglik check (which requires the Lagna)
• Place of birth — city and country for each partner

What the free result gives you

• Total Guna Milan score out of 36
• Individual scores for all 8 Kootas — so you can see exactly where the score comes from and which specific dimensions are strong or weak
• Identification of any Nadi Dosha or Bhakoot Dosha present
• Manglik status and approximate score for both partners
• Compatibility tier (Below Threshold / Acceptable / Average / Good / Very Good / Exceptional)

Why sidereal calculation matters here

The Guna Milan system is based on Moon Nakshatra positions — and Nakshatra assignment depends directly on whether the sidereal or tropical zodiac is used. With the approximately 24-degree difference between tropical and sidereal zodiacs in 2026, a Moon at 10 degrees of Libra in the tropical system would be at approximately 16 degrees of Virgo in the sidereal system — a completely different Nakshatra assignment. A Guna Milan score calculated from tropical positions is not a Vedic Guna Milan score. VastuIQ uses Lahiri sidereal ayanamsa throughout — ensuring the Nakshatra assignments, and therefore the Koota scores, are calculated correctly.

Low Score — What It Really Means and What to Do

A Guna Milan score below 18 is the result that creates the most distress — and the most important one to understand calmly and completely before making any decision.

What the score does not tell you

The Guna Milan score does not assess: the strength of the emotional bond between the two people, their individual character and emotional maturity, their shared values and life goals, their commitment to making the marriage work, or the hundreds of practical compatibility factors that determine day-to-day marital quality. A low Guna score does not mean the marriage will fail. It means specific astrological compatibility dimensions are weak — and those specific dimensions deserve conscious attention.

The Koota priority framework for low scores

When a total score is low, the most important first question is: which Kootas produced the low score? This is why the individual Koota breakdown matters more than the total:

When a low score warrants a full chart consultation

A full chart consultation with a qualified Vedic astrologer is particularly advisable when: the Nadi or Bhakoot Dosha is present and cancellation conditions are unclear; the total score is below 15; or the score is between 18 and 21 with both Nadi and Bhakoot scoring low. A qualified astrologer can assess compensating factors in the full charts — a strong 7th house, a well-placed Venus, compatible Dashas and the broader chart relationship — that the Guna Milan score alone cannot capture.

Kundli Matching for Love Marriages — The Honest Answer

This is the question millions of urban, educated Indians ask — and the one where the astrology content space gives the least useful answers. Here is the direct, honest version.

Does kundli matching matter for love marriages?

Yes — but differently than for arranged marriages, and with different stakes.

In an arranged marriage, where the couple may have limited pre-marriage relationship experience, the Guna Milan score provides an astrological assessment of compatibility dimensions that have not yet been tested through lived experience. The score is used as a compatibility proxy for factors the couple cannot yet know about each other.

In a love marriage, the couple already has direct experience of their emotional bond, communication dynamics and temperament compatibility. They have tested — through the relationship itself — the dimensions that Guna Milan is trying to assess theoretically. In this sense, a love couple’s lived experience partially substitutes for the Guna Milan’s theoretical assessment.

What kundli matching still adds to a love marriage:

• Nadi Dosha identification: This is the one Kundli matching outcome that can have practical health implications regardless of emotional compatibility — and it is not something the couple’s lived relationship experience would have revealed. Nadi Dosha relates to health and progeny, not to daily relationship quality. Checking for it is worthwhile even in strong love matches.
• Bhakoot Dosha identification: Financial compatibility is one of the most common post-marriage friction sources. Bhakoot Dosha’s financial-harmony dimension is worth knowing even in love marriages.
• Manglik differential: If one partner is a high-Manglik and the other is non-Manglik, this differential is worth knowing and addressing with appropriate remedies before marriage.

What kundli matching is less essential for in a love marriage: The temperament Kootas (Gana, Graha Maitri) assess alignment of emotional nature and mental compatibility — qualities a couple in a real relationship already has direct experience of. A couple who is in a stable, respectful, emotionally mature love relationship that has weathered genuine difficulty together has direct evidence of their temperament compatibility that the Guna Milan is only theoretically estimating.

The balanced recommendation: For a love marriage, check for Nadi Dosha, Bhakoot Dosha and the Manglik differential as the three most practically significant assessments. Let the total Guna score inform but not determine — especially if the lived relationship experience strongly suggests compatibility that a moderate score might not reflect.

Which Kootas Matter Most — The Priority Guide

Classical texts, experienced practitioners and the point-weightings themselves all converge on a consistent priority order for the 8 Kootas. This ordering is important when assessing a match where the total score is in the borderline range:

The practical implication: A couple scoring 24 out of 36 with full marks in Nadi (8/8), Bhakoot (7/7) and Gana (6/6) — their combined top three Kootas = 21/21 — is in a meaningfully stronger position than a couple scoring 26 out of 36 with Nadi Dosha (0/8) and Bhakoot Dosha (0/7) — whose remaining 6 Kootas must account for all 26 points. The higher total score hides a more serious underlying pattern.

Kundli Matching and Vastu — The Shared Home Dimension

This is the dimension that only VastuIQ’s platform can address — and it is genuinely important in ways that neither astrology alone nor Vastu alone can capture.

When two people marry and share a home, both their birth charts interact with the same Vastu environment simultaneously. The Vastu of the home either supports or suppresses each partner’s planetary patterns — and when the two partners’ charts have different planetary strengths, the same home can support one partner more than the other.

A worked example: Partner A has a strong Jupiter in their chart (northeast zone in Vastu). Partner B has a strong Mars in their chart (south-southeast zone in Vastu). A home with an excellent northeast zone and a challenged south zone will support Partner A’s Jupiter energy while suppressing Partner B’s Mars energy — creating a subtle home-level energetic imbalance over time. Neither partner is “wrong” and the Guna Milan score may be excellent — but the shared Vastu environment is contributing to one partner feeling more at home than the other.

The VastuIQ integrated approach: Check both charts’ strongest planetary placements using the Kundli Calculator, identify the corresponding Vastu directional zones for those planets, and then assess the home’s condition in those zones using the Free Vastu Calculator or AI Floor Plan Analyzer. A home that supports both partners’ strongest planetary patterns is the most harmonious marital environment — and it is something that can be assessed and improved with Vastu correction.

Frequently Asked Questions — Kundli Matching

What is the minimum Guna score for marriage?

The classical minimum is 18 out of 36 — half the maximum score. Below 18 is traditionally considered inauspicious and marriage is not recommended without a full astrologer consultation and assessment of compensating factors. Between 18 and 20 is acceptable with conscious attention to the specific Kootas that produced the low score. Most Indian marriages fall in the 21–28 range. A score below 18 does not make marriage impossible — it means the specific compatibility dimensions that produced the low score need deliberate attention and management, and a qualified astrologer’s full chart assessment is strongly advisable before proceeding.

What is Nadi Dosha and is it serious?

Nadi Dosha occurs when both partners share the same Nadi — both have Moon Nakshatras in the Adi, Madhya or Antya group — producing a score of 0 out of 8 in the Nadi Koota. It is classically considered the most serious single Koota defect, with associations including health challenges and progeny difficulties. However, Nadi Dosha has specific cancellation conditions — particularly when the partners have different Moon signs despite sharing the same Nadi Nakshatra group — that substantially reduce or neutralise the Dosha. Before treating Nadi Dosha as uncancelled, verify the cancellation conditions in the table above. Use VastuIQ’s free calculator for the initial assessment, then consult a qualified astrologer if Nadi Dosha is confirmed without clear cancellation.

Is a 28 Guna match good for marriage?

Yes — a 28-point Guna Milan score is a good to very good match, falling in the 25–28 band which indicates strong compatibility across the majority of the 8 Kootas. At this score level, the Guna Milan result supports marriage without reservation. The one verification worth making: check which individual Kootas produced the score. If 28 points include full marks in Nadi (8/8) and Bhakoot (7/7), the match is particularly solid. If it includes a Nadi or Bhakoot zero, the total score is still good but those specific dosha conditions need the cancellation check.

Can a marriage succeed with low Guna score?

Yes — many marriages with Guna scores below 18 are stable, happy and long-lasting. The Guna Milan score measures astrological compatibility across specific Nakshatra-derived dimensions — it does not measure the quality of the human relationship, the depth of emotional bond, the compatibility of values and life goals, or the maturity and commitment the partners bring to the marriage. A low Guna score indicates specific astrological compatibility challenges that deserve attention — not a prediction that the marriage will fail. The score is one input in a complex human decision, not a verdict.

Does kundli matching work for love marriages?

It works differently for love marriages than for arranged marriages. The temperament-related Kootas (Gana, Graha Maitri) assess dimensions that a couple in a real relationship has already tested through lived experience — making the score less decisive for those dimensions. However, the Nadi Dosha check (health and progeny implications), Bhakoot Dosha check (financial harmony) and Manglik differential assessment remain relevant even in love marriages because these are dimensions the couple’s relationship experience has not typically revealed. For love marriages, checking specifically for Nadi Dosha, Bhakoot Dosha and Manglik status is the most practically useful Kundli matching exercise.

What is the difference between Guna Milan and Kundli matching?

They refer to the same system. Kundli matching is the overall practice of comparing two birth charts for marriage compatibility. Guna Milan (also called Ashtakoot Milan) is the specific scoring method used within Kundli matching — the 8-Koota, 36-point system that produces the numerical compatibility score. “Kundli matching” describes the activity; “Guna Milan” describes the scoring methodology used in that activity. The terms are effectively interchangeable in everyday Indian usage.

How accurate is online kundli matching?

The accuracy of any online Kundli matching tool depends on two factors: the accuracy of the planetary position calculation (specifically the Moon’s Nakshatra assignment, which is the core input for all 8 Kootas) and whether the tool correctly identifies Dosha cancellation conditions. VastuIQ’s calculator uses sidereal Lahiri ayanamsa calculation — the correct Vedic standard — ensuring accurate Moon Nakshatra assignment. Many cheaper online tools use tropical positions or lookup tables that introduce errors in Nakshatra placement, producing wrong Koota scores. For the Manglik cross-check specifically, VastuIQ assesses all three classical reference charts (Lagna, Moon and Venus), which most basic tools do not.

What happens if kundli does not match at all?

A very low Guna score (below 15) with Nadi Dosha, Bhakoot Dosha and low scores across multiple other Kootas is a significant astrological compatibility concern. The appropriate step is a full chart consultation with a qualified Vedic astrologer — not to get a different score but to assess compensating factors in the full charts that the Guna Milan alone cannot capture. These include: the strength of both partners’ 7th houses (marriage house), the condition of Venus in both charts, compatible Dasha periods and the broader chart relationship. Remedial measures — including specific pujas, gemstones and Vastu corrections — may be recommended to address the most significant compatibility deficits. Even in a very low Guna score situation, the final decision rests with the individuals involved — the astrology provides information, not a mandate.

Can we do kundli matching without birth time?

Partially — and for Guna Milan specifically, partially may be sufficient. The Guna Milan system uses the Moon’s Nakshatra as its primary reference. The Moon changes Nakshatra approximately every 54 hours, meaning the birth date alone correctly identifies the Moon Nakshatra for most people (exceptions occur near Nakshatra transition points, where birth time is needed to confirm which side of the transition the birth falls on). For the Manglik cross-check component, birth time is more important because the Lagna (Ascendant) requires it. Use VastuIQ’s free calculator with the best available birth details — if birth time is unavailable, the Guna Milan portion will likely still be accurate, but note that the Manglik check will be based on Moon and Venus charts only, not the Lagna chart.

Check Your Compatibility + All Tools

Complete your marriage assessment:
🔴 Manglik Calculator — check both partners’ individual VASTUIQ Manglik Index score (0–100) from all 3 charts
🔮 Kundli Calculator — generate each partner’s full sidereal birth chart with Astro Profile
🌙 Nakshatra Calculator — identify each partner’s Moon Nakshatra, Pada and ruling planet

Manglik Dosha guides:
Manglik Dosha — Complete Guide 2026 — the complete Manglik hub with scoring model, North vs South India variation and all 6 house effects
What Is Manglik Dosha — Meaning, Effects and Myths — definition, all 6 house effects and the 7 biggest myths demolished
Manglik Dosha Remedies — Complete Guide by Score — score-tiered remedies from Kumbh Vivah to Tuesday practice
Free Kundli Calculator — Vedic Birth Chart Guide — the complete guide to reading your birth chart, all 12 houses and all 9 planets

All VastuIQ astrology tools:
♈ Rashi Calculator — Moon sign, ruling planet and Rashi profile
⬆️ Lagna Calculator — Ascendant sign and personality profile
🗓️ Panchang Calculator — daily auspicious timings and Muhurat

VastuIQ Vastu tools for the shared home:
🧭 Free Vastu Calculator — check the new home’s directional compliance score
🏠 AI Floor Plan Analyzer — complete 25-factor home assessment for the shared marital home
🏛️ Brahmasthan Calculator — find the home’s geometric centre and zone mapping
🚪 Pada Calculator — check the entrance pada score of the new home