Mahadasha Calculator
Your Mahadasha is the single major planetary period you're living through right now — the broadest, most consequential layer of Vimshottari timing, lasting anywhere from 6 to 20 years depending on which graha rules it. This calculator identifies your current Mahadasha and lays out all nine across your full lifetime.
Ayanamsa: Lahiri (Chitrapaksha) · System: Vimshottari (120-year cycle), starting lord from the Moon's natal nakshatra
Creator
James WhitfieldReviewers
Sarah Mitchell, M.A. in Cultural Astronomy & Astrology and Marcus Reynolds, Professional Astrologer & Astronomer
Last updated:
What a Mahadasha Represents
A Mahadasha sets the broad thematic backdrop for years at a time — the ruling planet's natural significations (and its specific dignity, house, and aspects in your natal chart) color the general tenor of that whole period, even as shorter Antardashas and Pratyantardashas add finer texture within it.
The Nine Mahadashas and Their Lengths
Ketu (7 years), Venus (20), Sun (6), Moon (10), Mars (7), Rahu (18), Jupiter (16), Saturn (19), and Mercury (17) — always in this fixed sequence, though which one runs FIRST depends entirely on your Moon's natal nakshatra lord.
Reading Your Current Mahadasha
A well-placed, strong ruling planet in your natal chart generally suggests that period unfolds more smoothly, while a weak, afflicted, or dusthana-placed ruler suggests a more effortful stretch — checking your current Mahadasha lord's dignity on the Planetary Position Calculator adds useful context here.
Mahadasha Calculator FAQs
What is a Mahadasha?
How do I know which Mahadasha I am in right now?
Does a "good" planet always mean an easy Mahadasha?
What comes after my current Mahadasha ends?
How is this different from the Vimshottari Dasha Calculator?
Related Dasha & Transit Calculators
Vimshottari Dasha Calculator
Computes your full 120-year Vimshottari dasha sequence — Maha, Antar, and Pratyantar periods — from your Moon nakshatra.
Antardasha Calculator
Calculates your current Antardasha — the planetary sub-period nested inside your active Mahadasha.
Pratyantardasha Calculator
Calculates your current Pratyantardasha — the fine-grained sub-sub-period within your active Antardasha.
Dasha Balance Calculator
Determines the balance of your first Mahadasha remaining at birth, based on the Moon’s exact nakshatra position.
Dasha Period Calculator
Looks up the start and end dates of any Maha, Antar, or Pratyantar dasha period across your lifetime.
Planetary Transit Calculator
Tracks current planetary transits (gochar) against your natal chart to show which houses are being activated now.
Transit Chart Calculator
Overlays live planetary positions on your natal chart to visualize present-day transits house by house.
Sade Sati Calculator
Checks whether you are in Sade Sati — the 7.5-year Saturn transit cycle around your natal Moon sign — and which phase.
Shani Dhaiya Calculator
Checks whether you are under Shani Dhaiya — the 2.5-year Saturn transit through the 4th or 8th house from your Moon.
Rahu Ketu Transit Calculator
Tracks the current transit of Rahu and Ketu through your natal houses across their 18-month sign changes.
Jupiter Transit Calculator
Tracks Jupiter’s current transit through the zodiac and shows which house it activates in your natal chart.
Saturn Transit Calculator
Tracks Saturn’s current transit through the zodiac and shows which house it activates in your natal chart.