Sidereal / Tropical Converter
Apply Lahiri or Fagan/Bradley ayanamsa and chart precession over time
Sidereal longitude = tropical longitude minus ayanamsa. The mini chart shows the historical rise of the chosen ayanamsa.
About this tool
Apply Lahiri or Fagan/Bradley ayanamsa to tropical longitudes and chart how precession changes the offset from 1900 to 2100. Sidereal / Tropical Converter runs in the browser on DevTools. There is no signup, and your input stays on this device unless the tool explicitly performs a live network lookup.
What this tool does not do
- Sidereal / Tropical Converter is a free in-browser utility, not a hosted API. It does not keep server-side history and is not a substitute for production verification in your own stack.
How do I use this tool?
How do I use Sidereal / Tropical Converter?
Open Sidereal / Tropical Converter, enter or paste your input, and copy the result. The page works without an account.
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