Understand the sidereal reference
Ayanamsha is the angular reference used when relating tropical and sidereal positions. This calculator shows the supported Lahiri result for the birth moment entered in the form.
Keep the method visible
A numerical difference between charts can arise from the chosen convention rather than a mistake in arithmetic. This page identifies the calculation method. To compare supported conventions side by side, use the separate ayanamsha comparison tool.
A reference value, not a personal forecast
The value describes the calculation reference at that time. It does not by itself predict an event or measure the accuracy of a birth certificate. Signed-in users can retain the input and result together.
How to use this calculator
- Check the prefilled birth details or select your own saved family profile.
- Enter a known birth time and select the correct birthplace.
- Generate the report. When signed in, your profile and the result save to your account automatically.
Frequently asked questions
Which ayanamsha does this page use?
This calculator uses the supported Lahiri convention. The comparison page evaluates other explicitly supported conventions.
Does changing ayanamsha change my saved birth date?
No. It changes a calculation convention, not the birth details recorded in the profile.
Can I compare this value later?
Yes. A successfully saved report retains its input and result so it can be reopened from account history.
