CalcaTools

Rashi Calculator (Moon Sign Calculator)

A Rashi Calculator (Moon Sign Calculator) helps calculate rashi calculator moon sign calculator using Vedic astrology, panchang, calendar, muhurat, Vastu or naming inputs. It gives an instant browser-based result with a transparent method and source notes. Use it for planning and learning, then verify important ritual or marriage decisions with a qualified practitioner.

Last updated: June 2026 · Free · No sign-up required

hours
Results

Enter values above and click Calculate to see your result instantly.

Quick reference

RashiWestern nameLord
MeshaAriesMars
KarkaCancerMoon
SimhaLeoSun
TulaLibraVenus
DhanuSagittariusJupiter
KumbhaAquariusSaturn
MeenaPiscesJupiter

verified AEO-ready answer first

The calculator returns a direct, extractable answer plus a structured breakdown for AI Overviews, ChatGPT citations and Perplexity-style answer extraction.

privacy_tip Private browser calculation

Inputs are processed client-side in your browser. CalcaTools does not require login and does not store birth details.

menu_book Topical context included

This page is mapped to the TIER 2 — Rashi, Nakshatra & Planetary Calculators cluster with related Hindu calendar, Jyotish, muhurat and Vastu entities for semantic SEO.

info Use responsibly

For ceremonies, marriage matching and legal decisions, verify with a qualified practitioner and your regional panchang.

Interpretation guide

OutputMeaning
Moon sign (rashi)Sign of the sidereal Moon at birth — your Vedic calendar identity
Sign lordPlanet ruling the rashi; its condition colours your Moon
Nakshatra + padaThe finer 13°20′ division inside the rashi — naming and dasha basis
Vedic vs Western sun signShown for contrast — the ≈24° ayanamsa often shifts it one sign
Rashi for horoscopesDaily/weekly “rashifal” in Indian media means this Moon sign, not the Sun sign

Formula & methodology

Formula: Rashi = ⌊sidereal Moon longitude / 30°⌋; sidereal = tropical − Lahiri ayanamsa

  1. Enter birth date and time (and place for best precision).
  2. The calculator computes the Moon’s tropical longitude at that moment.
  3. Subtracting the Lahiri ayanamsa gives the sidereal longitude; its 30° division is your rashi.
  4. The nakshatra-pada inside it and the rashi lord are returned, with sun signs for context.

Worked example — 1 Jan 1990, 06:00 IST: sidereal Moon 303.1° → Kumbha (Aquarius), lord Saturn, nakshatra Dhanishta pada 3; Vedic sun sign Dhanu while the Western one is Capricorn — a normal one-sign offset.

Authoritative source: Hindu astrology reference

Frequently asked questions

What is a rashi?
Your Moon sign: the sidereal zodiac sign the Moon occupied at birth. In Indian practice it is the primary “your sign” — rashifal columns, festival horoscopes, gemstone advice and matching all key off the rashi rather than the Sun sign.
Why does the Moon sign need a birth time?
The Moon crosses a sign in about 2½ days, so most birthdays pin it — but roughly one day in three contains a sign change. With a birth time the result is exact; without one, this calculator uses the date’s default time, and boundary cases deserve a recheck.
Rashi vs sun sign — why do they differ?
Different bodies and different zodiacs: the rashi tracks the Moon in the sidereal zodiac, the popular Western sign tracks the Sun in the tropical zodiac. The same person can easily be a Kumbha-rashi Capricorn-sun — both labels are simultaneously true in their own systems.
What is the rashi used for in daily life?
Daily and weekly predictions (rashifal), choosing a baby’s ritual name, gemstone and mantra recommendations, the Sade Sati calculation (Saturn’s transit from your Moon sign), and the Bhakoot/Nadi factors of marriage matching all use the Moon rashi.
Can my rashi change with a different ayanamsa?
Only if your Moon sits within a degree or so of a sign boundary. Lahiri — used here and by official panchangs — differs from Raman/KP ayanamsas by under half a degree, so flips are rare but possible; the displayed Moon longitude lets you judge the margin.

Explore the full Hindu & Vedic toolkit

Every CalcaTools Hindu calculator — kundali and birth charts, planetary dashas, doshas and remedies, panchang and muhurat timings, festival dates, and vastu — computed with the same Lahiri-ayanamsa astronomy engine validated against published ephemerides.

Birth chart & kundali

Planets, dashas & transits

Doshas & remedies

Panchang & muhurat

Festivals & Hindu calendar

Vastu, names & lucky signs