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Annaprashan Muhurat Calculator | First Rice Ceremony

The Annaprashan Muhurat Calculator proposes auspicious windows for the first rice feeding (annaprashan): it checks tithi quality, favourable nakshatras and weekday lords, and sunrise-bounded muhurat spans for your location, excluding Rikta tithis (4, 9, 14) and candra-dosha days flagged in classical muhurat texts.

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

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Results

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

Quick reference

Favourable elements: benefic nakshatras (Rohini, Pushya, Hasta, Swati, Revati…), odd tithis avoided (4, 9, 14 Rikta), weekday lords Mercury/Jupiter/Venus favoured.

public Location matters

Tithi and nakshatra boundaries depend on where you are — enter your city's coordinates for precise results.

schedule Ayanamsa

Calculations use the Lahiri (Chitrapaksha) ayanamsa, the standard for Vedic charts.

menu_book Panchang basis

Results follow drik-panchang style astronomical computation, not printed-table approximation.

school Traditions differ

Some regions use Surya Siddhanta conventions; where traditions conflict, your family panchang wins.

lightbulb A real example — picking a date in the next fortnight

Baby is 6.5 months; family wants the earliest good date.

Result: The calculator filters the next 15 days to ones with favourable nakshatra + non-Rikta tithi and returns sunrise-bounded windows like 8:12–10:36 AM.

What this means: Practical tip: choose the window that keeps the baby rested — a well-timed nap beats a marginal muhurat gain.

Formula & methodology

Formula: Tithi = ⌊(Moon−Sun elongation) ÷ 12°⌋; Nakshatra = ⌊Moon longitude ÷ 13°20'⌋; Vimshottari lord sequence Ketu→Venus→Sun→Moon→Mars→Rahu→Jupiter→Saturn→Mercury

How the Vedic calculation works

All Hindu calculators on CalcaTools share one astronomical runtime: Julian-day conversion, mean planetary longitudes, Lahiri ayanamsa, then derivation of tithi (Moon−Sun elongation ÷ 12°), nakshatra (Moon longitude ÷ 13°20'), rashi (Moon sign), and the Vimshottari dasha sequence (Ketu 7, Venus 20, Sun 6, Moon 10, Mars 7, Rahu 18, Jupiter 16, Saturn 19, Mercury 17 years) anchored at the birth nakshatra's lord.

Festival dates use tabulated panchang data; muhurat windows use sunrise/sunset plus planetary day-lord hours. Default location is Delhi (28.61°N, 77.21°E, IST) unless you enter coordinates — a birth 500 km west shifts nakshatra boundaries in edge cases, so exact coordinates matter for precision work.

Frequently asked questions

What is Annaprashan?
The first-rice ceremony — a baby's first solid food, typically at 6–8 months, performed with mantras and family blessings; known as Mukhe Bhaat in Bengal and Choroonu in Kerala.
Which nakshatras suit Annaprashan?
Classical lists favour Rohini, Mrigashira, Punarvasu, Pushya, Hasta, Chitra, Swati, Anuradha, Shravana, Dhanishta, Revati among others; Rikta tithis (4, 9, 14) are avoided.
Can Annaprashan happen on any day?
The ceremony needs an auspicious muhurat; odd-numbered months of the baby's age and certain lunar months (e.g., Pausha) are traditionally avoided.
What time of day is best?
Late morning to noon windows after sunrise are typical; the calculator bounds each suggestion to daylight muhurat spans for your coordinates.

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.

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