Vimshottari Dasha System
Free Dasha Calculator
Calculate your Vimshottari Mahadasha sequence based on your Moon nakshatra. Discover which planetary periods shape your life.
What is Vimshottari Dasha?
Vimshottari Dashais the most widely used planetary period system in Vedic astrology (Jyotish). The word “Vimshottari” means “120” in Sanskrit, referring to the total cycle of 120 years across nine planetary periods. Each period, called a Mahadasha, is governed by one of the nine Vedic planets (Navagraha) and colours all events, decisions, and experiences during that time.
Your Mahadasha sequence is determined by the nakshatra(lunar mansion) occupied by the Moon at the exact moment of your birth. Since there are 27 nakshatras and each is ruled by one of the nine planets, the starting Mahadasha lord — and the remaining balance of that first period — is unique to each birth chart. This is why two people born on the same day but at different times can experience vastly different life trajectories.
Mahadasha and Antardasha Explained
Mahadasha (Major Period): The primary planetary period that sets the overarching theme. Each Mahadasha lasts a fixed number of years: Ketu (7), Venus (20), Sun (6), Moon (10), Mars (7), Rahu (18), Jupiter (16), Saturn (19), Mercury (17). The total equals 120 years.
Antardasha (Sub-Period): Each Mahadasha is subdivided into nine Antardashas (Bhukti periods), one for each planet in the same Vimshottari sequence. The Antardasha modifies the Mahadasha theme — for example, Jupiter Antardasha within Saturn Mahadasha combines discipline with wisdom and expansion.
Pratyantardasha (Sub-Sub-Period): For even finer timing, each Antardasha is further divided into Pratyantardashas using the same proportional system. This fractal structure allows Vedic astrology to predict the timing of specific events with remarkable precision, often to within weeks or months.
How the Moon Nakshatra Determines Your Dasha
The 27 nakshatras are distributed among the nine planets in groups of three. Ashwini, Magha, and Moola are ruled by Ketu. Bharani, Purva Phalguni, and Purva Ashadha are ruled by Venus. Krittika, Uttara Phalguni, and Uttara Ashadha are ruled by the Sun.
The ruling planet of your Moon's nakshatra becomes your starting Mahadasha lord. The degree of the Moon within the nakshatra determines the Dasha balance — how much of the first period remains at birth. Our calculator determines your Moon nakshatra from precise Swiss Ephemeris calculations and maps it to the correct starting Mahadasha lord.
Frequently Asked Questions
What is a Mahadasha in Vedic astrology?
A Mahadasha is a major planetary period in the Vimshottari Dasha system. Each of the nine Vedic planets rules a specific number of years: Ketu (7), Venus (20), Sun (6), Moon (10), Mars (7), Rahu (18), Jupiter (16), Saturn (19), and Mercury (17). During a Mahadasha, the ruling planet's significations dominate your life experiences, career direction, relationships, and spiritual growth.
How do I know which Mahadasha I am currently in?
Enter your birth details above to calculate your Mahadasha sequence. The first Mahadasha is determined by your Moon's nakshatra at birth. From the balance of the first period, subsequent Mahadashas follow the fixed sequence: Ketu, Venus, Sun, Moon, Mars, Rahu, Jupiter, Saturn, Mercury.
What is the difference between Mahadasha and Antardasha?
Mahadasha is the major period, while Antardasha is a sub-period within each Mahadasha. Each Mahadasha contains nine Antardashas. The Mahadasha sets the overall theme, and the Antardasha modifies it.
Can Dasha periods predict specific events?
Vedic astrologers use the Dasha system to identify the timing of major life events such as career changes, marriage, childbirth, and financial shifts. By analysing which Mahadasha, Antardasha, and Pratyantardasha are active, predictions can be narrowed to specific months or even weeks.
Is birth time required for Dasha calculation?
Birth time is optional but recommended. The Moon moves through one nakshatra in approximately one day, so even without exact birth time the nakshatra can usually be determined. However, exact birth time is needed to calculate the precise Dasha balance.
AI Kundali Analysis
Why does this pattern keep repeating in your life?
Your kundali names the house, planet, and dasha behind it. Then it gives the upay you can actually follow.
Ask your chart: Which pattern in my kundali is affecting me the most?
What your kundali report will show
- Which house and planet explain the pattern you keep seeing.
- How your active dasha changes the timing of career, marriage, and money.
- Which upay fits your chart before you guess or overspend.