B.V. Raman Ayanamsa Chart Calculator
Your natal chart calculated with the B.V. Raman ayanamsa instead of the more common Lahiri, shifting every placement by roughly one degree, a legitimate alternative some Vedic astrology lineages prefer.How it works ↓
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The B.V. Raman ayanamsa is an alternative sidereal reference point used by some Vedic astrologers instead of the more common Lahiri ayanamsa, shifting every planetary sign position by roughly one degree.
About a one-degree shift from Lahiri
Raman and Lahiri are both sidereal ayanamsas, but they were fixed using slightly different reference points, so they diverge from each other by roughly one degree. That's usually too small a gap to change your sign, but it can move a placement close to a boundary onto the other side of it.
Neither ayanamsa is more correct
Choosing between Raman and Lahiri is a matter of which tradition or teacher's convention you're following, not a question of accuracy. Lahiri is the ayanamsa officially adopted by India's Calendar Reform Committee and the one most schools teach by default, which is why it's the default across the other tools in this set, but that's a matter of convention, not correctness.
Who uses Raman
B.V. Raman was a respected 20th-century Vedic astrologer, and some traditional lineages and teachers still use his ayanamsa in preference to Lahiri. If your teacher or lineage specifies Raman, this is the tool that matches that convention.
How this differs from the rest of this set
sidereal-chart and vedic-kundli both use Lahiri by default, and krishnamurti-kp-chart uses its own distinct KP ayanamsa for a sub-lord-based system, Raman is a third, separate reference point, not a variant of either.
The dasha timeline is calculated but not shown here
Vimshottari dasha periods are computed as part of this chart but aren't displayed on this page. For current and upcoming dasha periods, use the vimshottari-dasha tool.
Frequently Asked Questions
Will my sign change between Raman and Lahiri?
Usually not, the shift is only about one degree. It matters most if a placement sits close to a sign boundary in your Lahiri chart, where the small difference can push it into the adjacent sign under Raman.
Is Raman used outside Vedic astrology?
No, it's a sidereal ayanamsa specific to Vedic astrology, used as an alternative to Lahiri within that tradition rather than in tropical Western astrology.
How do I know if I should use this instead of the default Lahiri chart?
Use this if a specific teacher or lineage you follow specifies the Raman ayanamsa. If you don't have a reason to prefer it, sidereal-chart's Lahiri default is the more commonly taught option.