Birth Chart Calculator
Calculate your accurate Vedic birth chart for free using Swiss Ephemeris precision
✓ Swiss Ephemeris Accuracy • ✓ Instant Results • ✓ AI-Powered Analysis
What is a Birth Chart?
A Birth Chart (also called Natal Chart or Kundli) is a celestial map showing the exact positions of planets, zodiac signs, and houses at the precise moment and location of your birth. It's like a cosmic snapshot that captures the unique astronomical configuration that existed when you took your first breath.
In Vedic astrology, the birth chart is divided into 12 houses, each representing different life areas (personality, wealth, siblings, home, children, health, marriage, career, etc.). The 9 planets (Grahas) are placed in these houses and zodiac signs (Rashis), creating a unique pattern that influences your life path, personality traits, strengths, challenges, and major life events.
Jyotir AI's Birth Chart Calculator uses Swiss Ephemeris — the same astronomical library used by NASA and professional astrologers worldwide — to ensure your planetary positions are calculated with precision down to the second. Combined with AI analysis of 45+ classical Vedic texts, you get both accuracy and authentic interpretation.
Date of Birth
Your exact birth date
Time of Birth
Precise birth time (crucial for accuracy)
Place of Birth
City/town where you were born
Coordinates
Auto-fetched latitude/longitude
How the Calculator Works
Enter Birth Info
Provide date, exact time, and place of birth
Swiss Ephemeris Calculates
NASA-grade precision computes planetary positions
Get Your Chart
Instant birth chart with AI-powered Vedic analysis
Frequently Asked Questions
What is a Birth Chart Calculator?
A Birth Chart Calculator (also called Natal Chart Calculator) is a tool that computes the exact positions of planets, signs, and houses at the moment of your birth. It requires three inputs: date of birth, time of birth, and place of birth. Jyotir AI's calculator uses Swiss Ephemeris — the gold-standard astronomical library used by NASA — to calculate planetary positions with precision down to the second. The result is your complete Vedic birth chart showing planetary placements, house cusps, nakshatras, and special yogas.
Why do I need accurate birth time for the calculator?
Birth time accuracy is crucial because: (1) The Ascendant (Lagna/Rising Sign) changes approximately every 2 hours, and even 4 minutes can shift it to a different sign, (2) Houses are calculated based on the Ascendant, so incorrect time = incorrect house placements, (3) Planetary periods (Dashas) and transit timings depend on accurate Ascendant, (4) Moon sign and Nakshatra can change multiple times a day. Jyotir AI recommends using birth time from your birth certificate or hospital records for maximum accuracy.
How is this different from Western astrology birth charts?
Jyotir AI provides Vedic (Sidereal) birth charts, which differ from Western (Tropical) charts in several ways: (1) Zodiac System: Vedic uses Sidereal zodiac (aligned with actual constellations), Western uses Tropical (fixed to seasons), resulting in ~23-24 degree difference, (2) House System: Vedic primarily uses Whole Sign houses, Western often uses Placidus, (3) Planets: Vedic considers Rahu & Ketu (lunar nodes) as primary, Western may use outer planets, (4) Interpretations: Vedic predictions based on Dashas, Nakshatras, and classical texts; Western uses aspects and modern psychological approach. Both systems are valid; choose based on your preference.
Can I calculate birth chart without exact birth time?
You can create a birth chart without exact time, but it will have limitations: (1) No Ascendant (Lagna) calculation — this is the most important factor in Vedic astrology, (2) No accurate house placements — houses depend on Ascendant, (3) No precise Dasha periods — these require Ascendant position. However, you CAN still see: Moon sign (if birth time is within same day), Sun sign, planetary positions, and general planetary strength. For rectification (finding correct birth time), consult a professional astrologer. Jyotir AI can still provide insights based on available planetary positions even without exact time.
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