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Cast an accurate kundli from your birth details — computed from real astronomy, not lookup tables.
Enter a name, date, time and place of birth — get the full kundli: lagna, planetary positions with nakshatras, panchanga, dashas and strength tables. Everything runs in your browser; nothing is uploaded or stored.
Open the Birth Chart Calculator →Opens as a full-page app. Free, no signup, works offline once loaded.
Ascendant and whole-sign houses from spherical trigonometry and true sidereal time.
Sun through Saturn from VSOP87D planetary theory, Moon from lunar theory, Rahu/Ketu mean node — with retrograde and combustion flags.
Rashi and navamsha charts in both North and South Indian styles.
Tithi, vara, nakshatra, yoga and karana with exact end times found by root-finding, plus sunrise and sunset.
The complete 120-year cycle: mahadasha, antardasha and pratyantardasha with the running period highlighted.
Ashtakavarga (SAV + per-graha bindus), uccha and cheshta bala, and the Parashari aspect grid.
Positions are computed from first principles — Kepler's equation, VSOP87D perturbation series, lunar theory and IAU precession with the Lahiri (Chitra-paksha) ayanamsa — then validated against NASA JPL's DE421 ephemeris across 1,200 test epochs from 1900 to 2050.
A one-minute error in the recorded birth time shifts the lagna more than the ephemeris ever will — so the practical accuracy of your chart depends mostly on how precisely the birth time is known.
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