Free Mahadasha Calculator
Mahadasha Calculator, Your Timeline
Vedic astrology's timing system. See which planetary period you are in right now, when it ends, and the sequence for the rest of your life.
What Vimshottari dasha is
A birth chart shows what is in play. Dasha shows when. Vimshottari is the main timing system in Vedic astrology, dividing a notional 120 year lifespan between the nine planets in a fixed order and with fixed lengths.
Ketu gets 7 years, Venus 20, the Sun 6, the Moon 10, Mars 7, Rahu 18, Jupiter 16, Saturn 19 and Mercury 17. That sequence never changes. What changes between people is where in the cycle you start.
Where your sequence begins
It begins from the nakshatra your Moon occupied at birth. Each of the 27 nakshatras is ruled by one of the nine planets, and that planet's period is the one you were born into.
How far the Moon had travelled through that nakshatra decides how much of the first period was already spent. Someone born at the very start of an Ashwini Moon gets almost the full seven years of Ketu; someone born at the end gets months.
That is why two people born on the same morning can be running different periods for the next thirty years, and it is the strongest practical argument for knowing your birth time.
The layers inside a mahadasha
A mahadasha is the outer period, and it can run for nearly two decades. Nothing meaningful would be predictable at that resolution, so it subdivides.
Inside each mahadasha are antardashas, sub-periods in the same nine planet order. Inside those are pratyantardashas, and it keeps going. The tool above shows your current mahadasha and pratyantardasha, which is usually the useful pair.
In practice an astrologer reads the combination. Jupiter mahadasha with a Saturn antardasha behaves very differently from Jupiter with a Venus antardasha, even though the outer period is identical.
How to read a period you are worried about
A dasha is not good or bad by planet name. Saturn's period is not automatically hard and Venus's is not automatically easy. What matters is how that planet sits in your chart: which house it rules, which house it occupies, whether it is strong, and what it aspects.
A well placed Saturn running its own period can be one of the most productive stretches of a life. A badly placed Venus can be one of the most unsettled. The planet is the clock; your chart is the content.
If a period ahead is worrying you, that is a chart question rather than a calendar question. Ask it.
Frequently asked questions
What is a mahadasha?
The main planetary period in the Vimshottari system. Each of the nine planets rules one, with fixed lengths from six years for the Sun to twenty for Venus, and they run in a fixed order.
How is my dasha calculated?
From the exact position of the Moon at birth. The nakshatra the Moon occupied sets which planet's period you start in, and how far through that nakshatra the Moon had travelled sets how much of it was left.
Is a Saturn mahadasha bad?
Not by itself. Saturn's period reflects how Saturn sits in your chart. A strong, well placed Saturn running its own period is often a long stretch of solid, durable progress.
What is the difference between mahadasha and antardasha?
The mahadasha is the outer period, which can last up to twenty years. Antardashas are the sub-periods within it, cycling through the same nine planets in the same order.
Which period, and what it touches
You have the timeline. Ask Aura AI how the ruling planet sits in your chart, because that is what decides how the period actually plays out. First question free.
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