Dasha Compatibility Calculator
Compare two people's running dashas and see whether their planetary chapters support each other or pull in different directions.
Calculate Your Dasha Timeline
Enter your birth time, date, and place to calculate your active planetary periods
What Is Dasha Compatibility Calculator?
Traditional matching methods such as Ashtakoota Guna Milan compare two birth charts as static snapshots. They do not show whether two people's life phases are moving in step. A Dasha Compatibility Calculator adds that time dimension by comparing the dashas each person is running now and over the coming years.
Couples, business partners and families use it to spot periods when both timelines support each other, and periods when one partner's difficult dasha, or two Dasa Sandhis happening at once, may put pressure on the relationship.
Dasha Compatibility Calculator Formula
Dasha Harmony = Natural Relationship (Partner A's Dasha Lord, Partner B's Dasha Lord): Friend · Neutral · Enemy The Dasha Compatibility formula compares the two running Mahadasha lords using the classical natural friendships between planets, so the Sun and Jupiter count as friends while the Sun and Saturn count as enemies. Friendly lords suggest phases that support each other, and hostile lords point to periods that need more patience. Overlapping Dasa Sandhi windows are flagged separately as times of shared transition.
- Dasha Lord A / B
- Running Mahadasha planet for each person
- Naisargika Maitri
- Classical permanent friendship between planets
- Sandhi Overlap
- Both partners in a dasha transition at once
How to Use the Dasha Compatibility Calculator
Generate a dasha report for each person, then compare the running Mahadasha lords and upcoming transitions. The Dasha Compatibility Calculator helps you see whether two life phases support each other or strain the relationship.
- Enter the first person's name, gender, birth date, time and place.
- Click "Check Dasha Compatibility" and note their Mahadasha, Antardasha and next changeover date.
- Repeat with the second person's birth details.
- Compare the two Mahadasha lords using natural planetary friendship.
- Check whether both people reach a Dasa Sandhi (dasha transition) at around the same time.
- Use the overlap to plan shared decisions, such as marriage, a move or a business launch.
Tip: Dasha compatibility adds timing to Guna Milan. It does not replace chart matching, so use both for relationship decisions.
How the Dasha Compatibility Calculator Works
The calculator compares each person's running Mahadasha lord using the classical natural friendships between planets, known as Naisargika Maitri, and flags periods when both people go through dasha transitions together.
What the Calculator Needs
- Full birth details for both people
- Each person's running and upcoming Mahadasha lords
- Mahadasha end dates, to detect overlapping transitions
Formulas Used
- Harmony check
Relationship(Lord A → Lord B) and Relationship(Lord B → Lord A): Friend · Neutral · Enemy- Sun
Friends Moon, Mars, Jupiter · Enemies Venus, Saturn · Neutral Mercury- Jupiter
Friends Sun, Moon, Mars · Enemies Mercury, Venus · Neutral Saturn- Sandhi overlap
Both partners' MD end dates fall within the same transition window
Worked Example
If Partner A is in Jupiter Mahadasha and Partner B is in Venus Mahadasha, Jupiter treats Venus as an enemy, while Venus treats Jupiter as neutral. The relationship is one-sided, so the phases may differ in priorities, with one partner focused on growth and the other on comfort, and need more conscious alignment.
What Affects the Result
- Planetary friendships are not always mutual, so check both directions
- Each lord's placement in its own chart matters more than the pairing alone
- Temporary (Tatkalika) friendships in each chart can modify the natural relationship
Dasha Compatibility Calculator FAQs and Common Questions
What is dasha compatibility?
Dasha compatibility compares the running planetary periods of two people to see whether their current life phases support each other. It adds a timing dimension to traditional chart matching.
How do you check dasha compatibility for marriage?
Compare both partners' running Mahadasha lords using natural planetary friendship, and check whether either partner, or both, is near a Dasa Sandhi around the planned wedding date.
Is dasha compatibility more important than Guna Milan?
Neither replaces the other. Guna Milan compares basic temperament and nature, while dasha compatibility shows when the relationship's timing is supportive or strained.
What if both partners have the same dasha lord?
The same dasha lord often creates shared priorities, but results still depend on that planet's placement in each person's chart.
Can dasha compatibility predict divorce or separation?
No. It can highlight periods of strain, but relationship outcomes depend on many factors, including personal choices, and it should not be used to make fixed predictions.