---
title: Lagna Calculator
canonical_url: https://trustastrology.ai/lagna-calculator
section: calculators
last_updated: 2026-08-21
summary: Computes the sidereal lagna (ascendant), lagna nakshatra, and lagnesh from birth date, time, and place; a precise birth time is required for the rising sign.
volatile: false
---

Computes the sidereal lagna (ascendant), lagna nakshatra, and lagnesh from birth date, time, and place; a precise birth time is required for the rising sign.

## What you need

Birth date, time, and place (place search). A precise time is required for house-based results.

## What you get

On-screen placements, scores, or named yogas as this tool is built to show. Output is a calculation display, not a promise about life events.

## Method

The form posts to the calculator API for this tool. Planetary positions use Swiss Ephemeris with Lahiri ayanamsa, as stated in the site notes.

If a birth time is unknown, house cusps and lagna-dependent results are not reliable; the form still requires the fields it lists.

## Related

- [AI Face Scan](face-scan.md)
- [AI Palm Scan](palm-scan.md)
- [Arudha Lagna Calculator](arudha-lagna-calculator.md)
- [Divisional Charts](divisional-chart.md)