Enter your date, time, and place of birth to generate a free Janam Kundli with D1 and D9 charts, planetary positions, Vimshottari Dasha, and a simplified Mangal Dosha analysis.
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Supports 1900 onwards for better calculation reliability.
Example: 5:30 PM (= 17:30 in 24-hour). Even a 4-minute shift moves the Lagna by ~1°, so enter as precisely as you can.
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signature generator| Zodiac system | Sidereal (Lahiri / Chitrapaksha ayanamsa) |
| House system | Whole-sign (house 1 = Lagna sign) |
| Planets computed | 9 grahas including mean Rahu and Ketu |
| Divisional charts | D1 (Rashi) and D9 (Navamsa) |
| Dasha system | Vimshottari (120-year cycle, 365.25-day year) |
| Mangal Dosha check | Mars in houses 1, 2, 4, 7, 8, 12 from Lagna / Moon / Venus |
| Chart styles | North Indian (diamond) and South Indian (square) |
| Supported birth range | 1 Jan 1900 onwards |
| Typical precision | ±0.3° vs Swiss Ephemeris Lahiri |
| Privacy | 100% browser-side, no data sent anywhere |
A Kundli (also called Janam Kundli, birth chart, or horoscope) is a map of the sky at the moment of your birth. In Vedic astrology it records the positions of the Sun, Moon, five visible planets (Mars, Mercury, Jupiter, Venus, Saturn), and the lunar nodes (Rahu and Ketu) as viewed from earth, projected onto the zodiac.
This tool computes the sidereal (Lahiri) longitudes of all nine grahas using Meeus-based astronomical algorithms, assigns them to whole-sign houses, and derives the Panchang (Tithi, Nakshatra, Yoga, Karana, Vaara), Vimshottari Dasha, and Mangal Dosha status.
Lagna (ascendant) is the zodiac sign rising on the eastern horizon at your birth moment. It defines house 1. The sign-to-house mapping proceeds in order: house 2 is the next sign, house 3 the one after, through house 12.
Rashi (Moon sign) is the zodiac sign the Moon was in at birth. It is the most commonly referenced sign in Indian astrology (when someone asks “what’s your rashi?”, this is what they mean).
D9 (Navamsa) is a divisional chart where each sign is split into 9 equal parts of 3°20′, each mapped to a sign. It is used alongside D1 for marriage analysis and to gauge a planet’s underlying strength.
Nakshatra is the lunar mansion (13°20′ of ecliptic) in which the Moon sits at birth. It determines which of the 9 Vimshottari Dasha lords rules your starting Mahadasha.
| # | Nakshatra | Degrees (sidereal) | Dasha Lord | Years |
|---|---|---|---|---|
| 1 | Ashwini | 0°00′ - 13°20′ Aries | Ketu | 7 |
| 2 | Bharani | 13°20′ - 26°40′ Aries | Venus | 20 |
| 3 | Krittika | 26°40′ Ari - 10°00′ Tau | Sun | 6 |
| 4 | Rohini | 10°00′ - 23°20′ Taurus | Moon | 10 |
| 5 | Mrigashira | 23°20′ Tau - 6°40′ Gem | Mars | 7 |
| 6 | Ardra | 6°40′ - 20°00′ Gemini | Rahu | 18 |
| 7 | Punarvasu | 20°00′ Gem - 3°20′ Can | Jupiter | 16 |
| 8 | Pushya | 3°20′ - 16°40′ Cancer | Saturn | 19 |
| 9 | Ashlesha | 16°40′ Can - 0°00′ Leo | Mercury | 17 |
| 10 | Magha | 0°00′ - 13°20′ Leo | Ketu | 7 |
| 11 | Purva Phalguni | 13°20′ - 26°40′ Leo | Venus | 20 |
| 12 | Uttara Phalguni | 26°40′ Leo - 10°00′ Vir | Sun | 6 |
| 13 | Hasta | 10°00′ - 23°20′ Virgo | Moon | 10 |
| 14 | Chitra | 23°20′ Vir - 6°40′ Lib | Mars | 7 |
| 15 | Swati | 6°40′ - 20°00′ Libra | Rahu | 18 |
| 16 | Vishakha | 20°00′ Lib - 3°20′ Sco | Jupiter | 16 |
| 17 | Anuradha | 3°20′ - 16°40′ Scorpio | Saturn | 19 |
| 18 | Jyeshtha | 16°40′ Sco - 0°00′ Sag | Mercury | 17 |
| 19 | Mula | 0°00′ - 13°20′ Sagittarius | Ketu | 7 |
| 20 | Purva Ashadha | 13°20′ - 26°40′ Sag | Venus | 20 |
| 21 | Uttara Ashadha | 26°40′ Sag - 10°00′ Cap | Sun | 6 |
| 22 | Shravana | 10°00′ - 23°20′ Capricorn | Moon | 10 |
| 23 | Dhanishta | 23°20′ Cap - 6°40′ Aqu | Mars | 7 |
| 24 | Shatabhisha | 6°40′ - 20°00′ Aquarius | Rahu | 18 |
| 25 | Purva Bhadrapada | 20°00′ Aqu - 3°20′ Pis | Jupiter | 16 |
| 26 | Uttara Bhadrapada | 3°20′ - 16°40′ Pisces | Saturn | 19 |
| 27 | Revati | 16°40′ - 30°00′ Pisces | Mercury | 17 |
Mangal Dosha (also called Kuja Dosha in Hindi-belt astrology or Chevvai Dosham in Tamil tradition) is a Vedic astrological condition said to arise when Mars occupies specific houses in the birth chart. It is traditionally checked before marriage alliances in many Indian communities.
The standard check flags Mars in houses 1, 2, 4, 7, 8, and 12, counted from three reference points: Lagna, Moon, and Venus. If any reference flags it, the overall status is “Manglik”. (Some traditions exclude house 2 - we include it, matching the majority of Indian matrimonial practice.)
This tool applies the basic check without cancellation rules. Classical tradition recognises many exceptions (Mars in its own sign, exalted Mars, certain Jupiter aspects, matching dosha in the partner’s chart), so a “Manglik” label here should not be treated as a final matchmaking verdict. Consult a qualified astrologer for detailed analysis.
Vimshottari Dasha is a system of 120-year planetary cycles in Vedic astrology. It divides your life into 9 major periods (Mahadashas), each ruled by one of the 9 grahas.
| Order | Lord | Duration |
|---|---|---|
| 1 | Ketu | 7 years |
| 2 | Venus | 20 years |
| 3 | Sun | 6 years |
| 4 | Moon | 10 years |
| 5 | Mars | 7 years |
| 6 | Rahu | 18 years |
| 7 | Jupiter | 16 years |
| 8 | Saturn | 19 years |
| 9 | Mercury | 17 years |
| Total | 120 years |
Your starting Mahadasha is determined by the nakshatra the Moon was in at birth. The balance of the first Mahadasha is proportional to how far the Moon had already traversed that nakshatra. Each Mahadasha is subdivided into 9 Antardashas in the same 9-lord order, where each sub-period’s length is proportional to its own Dasha lord’s share of the 120-year total.
Calculations use Meeus-based astronomical algorithms (“Astronomical Algorithms”, Jean Meeus, 2nd edition, 1998) with VSOP87 planetary theory, the same maths used by most open-source ephemeris libraries. Lahiri ayanamsa is implemented as a linear precession model referenced to the 1900 epoch.
Typical precision is ±0.3° vs Swiss Ephemeris Lahiri for birth dates from 1900 onwards. For most charts this is well inside the tolerance that matters for Vedic placements - signs span 30°, nakshatras 13°20′, pada 3°20′. Sign, nakshatra, and whole-sign house assignments are usually stable across our engine and Swiss-Eph-based calculators for non-boundary placements. Exact degrees and boundary-adjacent placements (see below) may differ by a fraction.
Boundary cases are the exception. When a planet sits very close to a sign, nakshatra, pada, or navamsa boundary (within roughly ±0.3° of the cutoff), a small difference between ayanamsa or precession implementations can flip the placement to the neighbouring bucket. Dasha lord derivation is especially sensitive near nakshatra boundaries, since the starting Mahadasha changes. If you see a planet or the Moon within ~0.3° of a boundary in your chart, cross-check with a professional ephemeris (Swiss Ephemeris, Drik Panchang, or a qualified astrologer) before relying on it.
We do not claim Swiss-Ephemeris-grade or Drik-Panchang-grade precision. If you need observatory-accurate longitudes to the arc-second, use a professional ephemeris.
Yes. All calculations happen in your browser - no birth data is sent to any server. No signup, no account, no payment. You can use it as many times as you want.
Lahiri (Chitrapaksha) ayanamsa, the official standard published by the Government of India's Rashtriya Panchang. It's the most widely used sidereal reference in Indian astrology.
Typical precision is within ±0.3° of observatory-grade ephemerides (such as Swiss Ephemeris) for birth dates from 1900 onwards. Sign, nakshatra, and whole-sign house assignments are stable except when a planet sits very close to a boundary. Pada (3°20′) and navamsa sign boundaries are especially narrow - if a planet is within ~0.3° of a boundary, cross-check with a professional ephemeris before acting on the placement.
The underlying Meeus-based algorithms are tuned for arc-minute accuracy in the modern epoch. Older dates can be computed but with reduced precision in planetary longitudes and historical timezone lookups.
Whole-sign houses: house 1 is the Lagna sign, house 2 the next sign, and so on through house 12. This is the traditional Vedic system used across Indian astrology traditions.
We check Mars's whole-sign house from Lagna, Moon, and Venus. If Mars falls in houses 1, 2, 4, 7, 8, or 12 from any reference point, that reference flags the dosha. Any flag makes the overall status Manglik. This is a simplified check; traditional cancellation rules (own-sign Mars, Jupiter aspects, partner-side cancellation) are not applied.
Vimshottari Dasha is the most common Vedic planetary period system. It assigns 120 years across 9 Dasha lords, with durations: Ketu 7, Venus 20, Sun 6, Moon 10, Mars 7, Rahu 18, Jupiter 16, Saturn 19, Mercury 17. Your starting Mahadasha is determined by the nakshatra of the Moon at birth.
Both show identical data. North Indian is a diamond-in-square with Lagna fixed at the top (signs rotate based on Lagna). South Indian is a 4x4 grid with signs fixed in place (Pisces top-left, clockwise) and Lagna marked with 'La'. Pick whichever is more familiar.
Our companion Kundli Matching tool is coming soon. For now, this tool gives you the D1 chart, Moon nakshatra, and Mangal Dosha status - the core inputs used in matchmaking. We don't recommend making matching decisions from software alone; consult a qualified astrologer.
Different tools use different ayanamsas (Lahiri vs Raman vs KP vs Fagan-Bradley), house systems (whole-sign vs Placidus vs Sripati), or precession polynomials. We use the Lahiri sidereal + whole-sign conventions shared by most Indian Panchang publications (including Drik Panchang and the Rashtriya Panchang), but exact degrees may differ by a fraction from calculators using Swiss Ephemeris or alternate precession models - that is expected.
Kundli Matching (Ashtakoota Guna Milan) is coming soon on the Astrology hub.