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Vimshottari Dasha Calculator

Find your current Mahadasha (major period) and Antardasha (sub-period) and see the full Vimshottari Dasha timeline for all 9 planetary periods. Enter your date of birth, time of birth, and place of birth. Free, with no account required.

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What is Vimshottari Dasha?

Vimshottari Dasha is the most widely used planetary period system in Vedic astrology. The word "Vimshottari" means 120, referring to the total duration of one complete cycle. Each of the nine planets governs a distinct period of life, ranging from 6 years (Sun) to 20 years (Venus). The system begins from your Moon's nakshatra at birth, which determines which planet starts your sequence and how many years remain in that first period.

The Dasha system is considered the most reliable timing tool in Vedic astrology for predicting when events unfold in life. Unlike Western predictive techniques that rely on transits alone, Vimshottari Dasha gives a personal clock that runs at a different pace for each person depending on their birth chart. A Nakshatra Calculator will tell you your birth star, which is the starting point for any Dasha reading.

How to Read Your Dasha Timeline

The calculator above shows your current Mahadasha (major period) and the Antardasha (sub-period) running within it. Each Mahadasha is further divided into 9 Antardashas. When reading your period, consider both the Mahadasha lord and the Antardasha lord together -- the Antardasha lord modifies and colours the Mahadasha's themes.

Mahadasha

The major planetary period. Sets the overarching theme for that stretch of life. Ranges from 6 years (Sun) to 20 years (Venus).

Antardasha

The sub-period within a Mahadasha. Refines and modifies the major period's effects. Each Mahadasha has 9 Antardashas in fixed sequence.

Pratyantardasha

The sub-sub-period. Covers very specific windows of time within an Antardasha. Used for precise event timing by experienced practitioners.

For a deeper understanding of how your current Dasha period is unfolding within your full chart, the AI Astrologer can analyze your Mahadasha against your natal chart and current planetary transits to give a more specific reading.

Frequently Asked Questions

Vimshottari Dasha is the primary planetary period system used in Vedic astrology. It assigns each planet a fixed rulership period totalling 120 years across one complete cycle. The system begins from the position of the Moon at birth, specifically which nakshatra the Moon occupied. The sequence of planetary periods then unfolds in a fixed order, and the duration of the first partial period is determined by how far the Moon had already traveled through its birth nakshatra.
The Dasha sequence is calculated from the Moon's sidereal longitude at birth. The 27 nakshatras are each assigned a planetary ruler, and the Moon's nakshatra at birth determines which planet starts the sequence. Each nakshatra spans 13 degrees and 20 minutes, and the fraction of the nakshatra already elapsed at birth determines how many years remain in the first dasha. The full sequence always follows the same order: Sun, Moon, Mars, Rahu, Jupiter, Saturn, Mercury, Ketu, Venus.
Mahadasha is the major planetary period, with durations ranging from 6 years (Sun) to 20 years (Venus). Within each Mahadasha, there are 9 sub-periods called Antardashas, each ruled by a different planet. The Antardasha sequence within any Mahadasha starts from the Mahadasha lord itself and follows the same fixed order. Each Antardasha duration is proportional to both the Mahadasha lord's years and the Antardasha lord's years as a fraction of the 120-year cycle.
The Mahadasha durations are: Sun 6 years, Moon 10 years, Mars 7 years, Rahu 18 years, Jupiter 16 years, Saturn 19 years, Mercury 17 years, Ketu 7 years, and Venus 20 years. The total adds to 120 years, which represents one complete Vimshottari cycle.
Each planet has a distinct set of significations, and being in that planet's Mahadasha tends to bring those themes to the forefront of life. Jupiter Mahadasha often coincides with expansion, marriage, children, or spiritual growth. Saturn Mahadasha typically brings discipline, hard work, and long-term structural changes. The actual results depend heavily on the planet's placement, house lordship, and condition in the natal chart -- a well-placed planet delivers its best results during its period.
Yes, an accurate birth time is essential. The Dasha calculation depends on the Moon's exact nakshatra position, and since the Moon moves roughly one nakshatra every 24 hours, even a few hours difference can place the Moon in a different nakshatra and completely change the starting period. If you were born near a nakshatra boundary, even a 15-minute difference in birth time can alter the calculation significantly.
Antardasha (also called Bhukti) is the sub-period within a Mahadasha. While the Mahadasha sets the overall theme of a period, the Antardasha lord modifies and refines the results. A Jupiter Mahadasha with a Saturn Antardasha will feel quite different from the same Mahadasha running a Venus Antardasha. Astrologers typically read both the Mahadasha and Antardasha together to understand timing of specific events.
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