Dwadasamsa Chart (D-12) Calculator

Parents, ancestry and family lineage

Dwadasamsa, the twelfth divisional chart, is dedicated to parents and ancestral lineage — an extension of the 9th (father) and 4th (mother) houses of the birth chart. It is used to study the nature, health and influence of one's parents, and inherited family patterns.

Parents Ancestry Lineage Inherited tendencies

Rashi Chart (D-1)D-1

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Dwadasamsa Chart (D-12) CalculatorD-12

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Division Rule

Each rashi is split into 12 equal parts of 2°30' each.

How to Read It

The Sun and 9th house in D-12 relate to the father; the Moon and 4th house relate to the mother. Benefic placement and aspects on these support long-lived, supportive parents, while affliction is read cautiously alongside the same factors in D-1 before drawing conclusions.

Dwadasamsa Chart (D-12) Calculator — FAQ

Does Dwadasamsa predict the exact health of one's parents?

It is one indicator among several, not a standalone medical prediction — it is combined with the 9th house (father), 4th house (mother) of D-1, and their Dasha periods for a fuller, more responsible reading.

What does Dwadasamsa reveal beyond the parents themselves?

Beyond direct parental indications, it is also read for inherited traits, family reputation, and ancestral karma the native carries forward — useful context in a fuller family-history reading.

How is Dwadasamsa different from the 4th and 9th houses of D-1?

D-1's 4th and 9th houses give the broad promise; D-12 refines it into a finer-grained picture the same way every divisional chart refines its parent house — think of D-1 as the outline and D-12 as the detail layer specific to parents and lineage.