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Stellr's Vedic astrology tools are built on Swiss Ephemeris DE431, the same astronomical dataset used by professional Jyotishis worldwide. Every calculation uses the Lahiri ayanamsa, the standard sidereal correction adopted by the Indian Council of Astrological Sciences.
Unlike generic horoscope websites that group one in twelve people under the same prediction, these tools compute results from your exact birth time, date, and location — producing a reading unique to you.
Yes, all calculators are free to use. You can calculate birth charts, moon signs, nakshatras, ascendants, and daily horoscopes without any account. Rate limits apply to ensure quality for everyone.
Stellr uses the Swiss Ephemeris DE431 dataset and Lahiri ayanamsa — the same astronomical calculation engine trusted by professional Vedic astrologers worldwide. Results are accurate to arc-second precision.
For most tools, you need your date of birth, time of birth, and place of birth. The daily horoscope only requires your moon sign. If you don't know your exact birth time, use 12:00 noon as an approximation.
Vedic astrology uses the sidereal zodiac (fixed against actual star positions) and the Lahiri ayanamsa correction, while Western astrology uses the tropical zodiac (season-based). This shift of roughly 23–24 degrees means your Vedic signs are often different from your Western ones.
No account is required to use any of the free calculators. Creating a free account allows you to save your chart, ask the AI guide questions, and access deeper readings.
Best for
People who want free, accurate Vedic (sidereal) calculations from their exact birth date, time, and place — and plain-English answers about what the chart means.
Not best for
Users looking for live human astrologer calls, Panchang-only almanacs, or professional desktop astrology software.
