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Vedic Astrology Calculators

Every free Vedic calculator on Ishvaram in one place: kundali, kundli matching, dasha, divisional charts, numerology and more — each computed from Swiss Ephemeris with Lahiri ayanamsa.

Swiss Ephemeris Astronomical Precision & Methodology

Every calculator in our catalog leverages high-precision astronomical algorithms from the Swiss Ephemeris engine using the standard Lahiri Ayanamsha (Chitra Paksha). Unlike surface-level calculators that rely on simplified approximations or static sun-sign tables, our engine computes exact topocentric planetary longitudes, true lunar node placements, and real-time house cusps (Bhava Chalit) for your specific birth instant and geographical coordinates.

Whether you are generating a natal birth chart (Kundali), evaluating marital compatibility via Ashta Koota Guna Milan, or analyzing Vimshottari Dasha periods, our calculations adhere strictly to classical Parashari principles while ensuring zero reliance on ungrounded generative AI guesses.

Divisional Charts (Varga Schemes) & Multi-Dimensional Depth

Beyond the primary birth chart (D1), classical Jyotish requires analyzing specialized divisional charts (Shodashvarga) for micro-level accuracy. Our calculation suite computes key divisional charts including D9 (Navamsa for destiny & marriage), D10 (Dasamsa for career & public honor), D7 (Saptamsa for children & lineage), and D60 (Shashtiamsa for karmic root causes).

Ashta Koota Compatibility & Guna Milan Framework

Our Kundli matching calculator analyzes all 8 classical dimensions (Kootas)—Varna, Vashya, Tara, Yoni, Graha Maitri, Gana, Bhakoot, and Nadi—granting up to 36 points (Gunas). It identifies critical cancellations for Nadi Dosh and Bhakoot Dosh to prevent misleading incompatibility warnings.

Frequently Asked Questions

How are these calculators computed?

Every calculator on this page reads planetary positions from the Swiss Ephemeris with Lahiri ayanamsa — the same engine behind every Ishvaram reading. Nothing on this site is a pre-written template keyed to your sun sign; the numbers come from your exact birth moment and resolved birth coordinates.

Which calculator should I start with?

Start with the free Kundali if you want the whole birth chart — lagna, rashi, nakshatra, the twelve houses, dasha timeline and dosha indicators in one place. Use Kundli Matching if your question is about marriage compatibility, and a divisional chart (D9 Navamsa, D10 Dasamsa) when you already know your chart and want depth on one area of life.

Do I need my exact birth time?

For anything house-based — lagna, the twelve bhavas, divisional charts, Lal Kitab remedies — yes, because the lagna changes roughly every two hours. Most planetary positions are accurate without it. Where a calculator needs exact time it asks for it and will not silently substitute noon.

What is the difference between Rashi Chart (D1) and Navamsa (D9)?

The D1 Rashi chart represents your physical body, birth environment, and outer potential in life. The D9 Navamsa chart represents the inner spiritual strength of your planets, marriage compatibility, and the second half of life. A planet that appears weak in D1 can gain significant strength if placed in a favorable sign in D9.

How reliable are Vimshottari Dasha calculations?

Vimshottari Dasha calculates a 120-year planetary timeline based on the exact Nakshatra longitude of the Moon at birth. Because Moon longitude changes quickly, precise birth coordinates and times guarantee accurate transition dates between Major (Mahadasha), Minor (Antardasha), and Sub-minor (Pratyantardasha) periods.

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