Free Vimshottari Dasha Calculator — Mahadasha & Antardasha by Date of Birth
Vimshottari Dasha is the 120-year planetary timeline that begins from your Moon's birth nakshatra. This free calculator shows which Mahādaśā and Antardaśā you are in right now, when the current period ends, and which planet governs it — computed with Swiss Ephemeris precision and the Lahiri ayanamsha. Searching specifically for “mahadasha calculator”? Same engine lives on our Mahadasha Calculator landing.
Free. Vimśottarī Dasha for any birth date worldwide.
The planetary periods shaping your life — computed on Swiss Ephemeris, read back to you in plain language.
विंशोत्तरी दशा · Your birth details
Vimshottari Dasha — Mahadasha & Antardasha
Vimshottari Dasha is the primary planetary period system in Vedic astrology. Enter your birth date, time, and place above to see your current Mahadasha, Antardasha, and the full 120-year timeline — then explore related dosha and transit checks below.
How Daanyam computes this
Daanyam computes Vimshottari Dasha with Swiss Ephemeris (professional-grade ephemeris), Lahiri ayanāṃśa, and whole-sign houses where applicable — serving 10,000+ charts daily with ~95% agreement vs classical table checks in our audits. Classical framing draws on Brihat Parashara Hora Shastra, Phaladeepika, Jataka Parijata. See how we compute →
- Brihat Parashara Hora Shastra — Classical Jyotish text on planetary significations and chart interpretation
- Phaladeepika — Mantreswara's treatise on predictive astrology
- Jataka Parijata — Vaidyanatha's compendium on birth chart analysis
After you get a result, share a summary card. Preview a sample Dasha share card.
Frequently asked questions
What is Mahadasha vs Antardasha?+−
Mahadasha is the major planetary period — each graha (Sun, Moon, Mars, Rahu, Jupiter, Saturn, Mercury, Ketu, Venus) rules a fixed span of years totalling 120. The Antardasha is a sub-period within each Mahadasha, giving a more granular picture. For example, during a 16-year Jupiter Mahadasha, you will pass through nine Antardashas (Jupiter–Jupiter, Jupiter–Saturn, etc.), each lasting months to years.
Why is birth time important for Dasha calculation?+−
The Vimshottari Dasha sequence starts from the Moon's exact nakshatra position at birth. Even a 15-minute difference can shift the nakshatra pada (quarter) and change the remaining balance of the first Mahadasha by several months. This cascading shift affects every subsequent period. If birth time is unknown, the calculator assumes 12:00 noon, which may reduce accuracy.
Can Dasha predict the future?+−
Dasha indicates which planetary themes are active — not fixed events. A Saturn Mahadasha highlights discipline, responsibility, and karmic lessons; it does not dictate specific outcomes. Jyotish offers guidance and timing context, not deterministic prediction. How you respond to each period's themes — through awareness, effort, and appropriate seva — shapes the actual experience.
How accurate is this calculator?+−
Daanyam computes Dasha using Swiss Ephemeris-grade planetary positions and classical rules from Brihat Parashara Hora Shastra (BPHS). The calculation is astronomically precise to the second. Interpretation accuracy depends on correct birth time — the tool highlights this requirement before submission.
How is Dasha different from Western astrology transits?+−
Western astrology times life events mainly through transits and progressions — where planets are in the sky now relative to your chart. Vimshottari Dasha is unique to Jyotish: a fixed 120-year sequence set at birth by the Moon's nakshatra, independent of current planetary motion. Astrologers read Dasha first for the life chapter, then layer transits (like Sade Sati) on top for fine timing.
Which ayanamsha does the Dasha calculator use?+−
Daanyam uses the Lahiri (Chitrapaksha) ayanamsha, the Government of India standard and the most widely used in modern Jyotish. Ayanamsha choice shifts the sidereal Moon position, so a different ayanamsha (like Raman or KP) can occasionally place a borderline Moon in the neighbouring nakshatra and change the Dasha sequence — which is why consistent, standard settings matter.
Is the Dasha calculator free?+−
Yes. The Mahadasha and Antardasha timeline, current-period reading, and end dates are completely free, with no sign-in required. A deeper Dasha Patrika PDF — with Pratyantardasha timing, remedies, and period-by-period guidance — is available as an optional paid report.
What is the 120-year Vimshottari cycle?+−
Vimshottari means '120' in Sanskrit. The system distributes 120 years across nine grahas in a fixed order: Ketu (7), Venus (20), Sun (6), Moon (10), Mars (7), Rahu (18), Jupiter (16), Saturn (19), Mercury (17). The cycle repeats endlessly, but since average human lifespan is shorter, most people experience only 5–7 Mahadashas. The starting point depends on the Moon's nakshatra at birth.
Also explore Career Prediction, Shani Sade Sati, Dosha Calculator, Kundli Explainer, Kundli Matching, Today's Panchang, and Daily Rashifal.
How is your Vimshottari Dasha calculated?
The Vimshottari Dasha system distributes 120 years across nine grahas (planets) in a fixed order: Ketu (7 yrs), Venus (20), Sun (6), Moon (10), Mars (7), Rahu (18), Jupiter (16), Saturn (19), and Mercury (17). Your personal sequence begins with the nakshatra (lunar mansion) the Moon occupies at the exact moment of birth.
Each of the 27 nakshatras is ruled by one of the nine grahas. The ruler of your birth nakshatra becomes your first Mahadasha planet, and the remaining balanceof that period is calculated from the Moon's precise longitude within the nakshatra. This balance — often just months or a few years — is the starting offset that makes every person's Dasha timeline unique.
Within each Mahadasha, nine Antardashas (sub-periods) cycle through the same planetary order, starting from the Mahadasha lord itself. For example, during a Jupiter Mahadasha (16 years), you pass through Jupiter–Jupiter, Jupiter–Saturn, Jupiter–Mercury, and so on. The Antardasha lengths are proportional to each planet's share of the 120-year cycle.
Daanyam computes your Dasha using Swiss Ephemeris-grade planetary positions and the classical rules from Brihat Parashara Hora Shastra (BPHS). Enter your date of birth, exact birth time, and place of birth above to see your current Mahadasha, Antardasha, and the full timeline.
Vimshottari Mahadasha guides
Each graha rules a fixed Mahadasha chapter — effects on career, relationships, and classical remedies. Open your planet's guide, then calculate your personal timeline.
Which Dasha am I in right now?
You cannot know your current Dasha from your Sun sign or Rashi alone — it depends on the exact nakshatra (lunar mansion) your Moon occupied at birth and how far through it the Moon had travelled. Enter your birth date, time, and place in the calculator above and it returns your running Mahadasha and Antardasha instantly, with start and end dates for each period.
As a rough guide: if a single life theme — discipline, expansion, upheaval, relationships — has dominated the last several years, that is usually the signature of the running Mahadasha lord. The calculator confirms it precisely from the Moon's longitude, not from guesswork.
What is Vimshottari Dasha?
Vimshottari Dasha is the most widely used planetary period system in Vedic astrology (Jyotish). The word Vimshottarimeans "120" — the total span of one complete cycle. Nine grahas divide this cycle: Ketu (7 years), Venus (20), Sun (6), Moon (10), Mars (7), Rahu (18), Jupiter (16), Saturn (19), and Mercury (17).
The starting point is determined by the Moon's nakshatra (birth star) at the moment of birth. Each nakshatra is ruled by a specific graha, and the remaining balance of that graha's Mahadasha at birth sets the sequence for life. This is why accurate birth time matters so much — a shift of even minutes can change the initial Dasha balance.
Within each Mahadasha, nine Antardashas (sub-periods) cycle through the same sequence. A further level, Pratyantardasha, subdivides each Antardasha. Daanyam's calculator shows the first two levels — Mahadasha and Antardasha — which are the most practically useful for understanding life chapters and timing decisions.
The system originates in Brihat Parashara Hora Shastra (BPHS), attributed to the sage Parashara, and has been the primary Dasha system for North Indian Jyotish for centuries. It remains the default predictive tool for classical astrologers across India.
When does my current Dasha end?
Every Mahadasha has a fixed length — Ketu 7 years, Venus 20, Sun 6, Moon 10, Mars 7, Rahu 18, Jupiter 16, Saturn 19, Mercury 17 — but your personal end date depends on the balance of the first Dasha at birth. Because the Moon is partway through a nakshatra when you are born, your first period starts partially elapsed, which shifts every subsequent start and end date.