Janma Mahadasha Calculator — Vimshottari Dasha at Birth
What is Janma Mahadasha?
Your Janma Mahadasha is the Vimshottari Dasha (major planetary period) that was running at the moment you were born. In Vedic astrology, the entire life is divided into nine Mahadashas — ruled by Ketu, Venus, Sun, Moon, Mars, Rahu, Jupiter, Saturn, and Mercury — that together span 120 years.
The starting Mahadasha lord is fixed by your birth Nakshatra (the lunar mansion the Moon occupied at birth), and the balance at birth is the unspent portion of that lord's period. From there the dashas run in the fixed Vimshottari order, each one coloured by the nature of its ruling planet.
What this calculator shows
- Your birth Mahadasha lord and the balance remaining at birth
- The Mahadasha, Antardasha, and Pratyantardasha running right now
- The full 120-year Mahadasha timeline with start and end dates
- Expandable Antardasha, Pratyantardasha, Sukshma and Prana sub-periods
Dashas describe the timing of life events — which planet's results are likely to unfold and when. For a personal reading of how a period may affect you, consult a qualified astrologer. For accuracy, enter your exact birth time and pick your birth city from the dropdown so the coordinates and timezone are correct.
Frequently asked questions about Janma Mahadasha
What is Janma Mahadasha and why does it matter?
Your Janma Mahadasha is the Vimshottari Dasha (major planetary period) that was running at the moment you were born. In Vedic astrology, the entire life is divided into nine Mahadashas — ruled by Ketu, Venus, Sun, Moon, Mars, Rahu, Jupiter, Saturn, and Mercury — that together span 120 years.
How is Janma Mahadasha calculated from my birth chart?
The starting Mahadasha lord is fixed by your birth Nakshatra (the lunar mansion the Moon occupied at birth), and the balance at birth is the unspent portion of that lord's period. From there the dashas run in the fixed Vimshottari order, each one coloured by the nature of its ruling planet.
What else should I know about Janma Mahadasha?
Dashas describe the timing of life events — which planet's results are likely to unfold and when. For a personal reading of how a period may affect you, consult a qualified astrologer. For accuracy, enter your exact birth time and pick your birth city from the dropdown so the coordinates and timezone are correct.
Do I need my exact birth time for Janma Mahadasha?
Yes for a reliable reading. Janma Mahadasha depends on the ascendant and house lords, which shift with the birth time — so enter the exact time with the correct AM/PM and pick your city from the suggestions. A rough time can still give a broad sense, but house-based results may change.
Have a question about your Dasha periods? Our astrologers answer real reader questions.
Ask your Questions ?