Kaal Sarp Dosha describes a chart where all seven classical planets sit on one side of the Rahu-Ketu axis. Enter your birth details above and this calculator checks that condition directly, distinguishes a complete Kaal Sarp from a partial one, and names the type where it fully forms.
How this calculator works
Positions are computed in your own browser by our ephemeris, using the Lahiri ayanamsa and the mean lunar node for Rahu and Ketu, checked against the Swiss Ephemeris to within about a minute of arc for the Sun and Moon and about ten minutes of arc for Jupiter and Saturn. Your ascendant, needed to name the type when the condition forms, comes from the local sidereal time at your birth place, so an accurate birth time improves this part of the result. The time zone in force at your birth place, including daylight saving, is applied automatically, and nothing you enter is sent to our server.
The calculator checks the Sun, Moon, Mars, Mercury, Jupiter, Venus and Saturn against the axis running from Rahu to Ketu. If all seven fall on one side, that is a complete Kaal Sarp. If one or two fall outside, it is graded as partial, Ardha Kaal Sarp. If three or more fall outside, the condition does not form, and the calculator names the planets responsible either way. Where a complete Kaal Sarp forms, it identifies which of the twelve named types it is, Anant, Kulik, Vasuki, Shankhpal, Padma, Mahapadma, Takshak, Karkotak, Shankhachud, Ghatak, Vishdhar or Sheshnag, based on which house Rahu occupies from your Lagna.
Reading your result
The result states plainly whether your chart is complete, partial or does not carry the condition at all, and which planets, if any, sit outside the axis. Where it is complete, the named type is shown along with the house Rahu occupies. A partial reading names the specific planet or planets that break the axis, which is itself useful information: those planets are the ones classically said to soften the condition’s effect.
Where traditions differ
Kaal Sarp is not named in Brihat Parashara Hora Shastra. It is a later, disputed concept, popularised much more recently than most of what this site computes, and a number of serious astrologers do not treat it as a classical category at all, reading the same placements instead through each planet’s own house and aspect without reaching for a separate name. Where it is used, sources also differ on how strictly to apply it: some require every one of the seven planets to be inside the axis with no exception, others allow a planet very close to Rahu or Ketu’s own degree to still count as inside even if it sits just past the boundary. This calculator applies the strict version; any planet outside the axis at all moves the chart to partial or void.
We say this plainly because Kaal Sarp is one of the most heavily marketed conditions in popular astrology, usually with fear attached and a remedy for sale attached to the fear. That approach is the opposite of how this site treats it.
What it cannot tell you
This calculator checks one geometric condition. It does not predict events, and it makes no claim about a person’s life course from this placement alone. It also does not weigh the rest of the chart, a well-placed Jupiter or a strong Lagna, against a Kaal Sarp reading, which a fuller analysis would do. For the complete chart, see the free kundali tool. A great many ordinary, settled lives carry this placement, and it is read here as a marker of intensity, not a warning.
Frequently asked questions
↳ What is Kaal Sarp Dosha?
It describes a chart where all seven classical planets, the Sun, Moon, Mars, Mercury, Jupiter, Venus and Saturn, fall on one side of the axis running from Rahu to Ketu. It is a later addition to popular astrology rather than a condition named in Brihat Parashara Hora Shastra, and this site treats it as a disputed, minor consideration rather than a serious concern.
↳ What is the difference between complete and partial Kaal Sarp?
A complete Kaal Sarp has all seven planets inside the Rahu-Ketu axis with no exception. If one or two planets fall outside it, the calculator grades it as partial, Ardha Kaal Sarp, which is read as considerably milder. If three or more fall outside, the condition does not form at all.
↳ How many types of Kaal Sarp Dosha are there?
Twelve, named by the house Rahu occupies counted from your Lagna: Anant, Kulik, Vasuki, Shankhpal, Padma, Mahapadma, Takshak, Karkotak, Shankhachud, Ghatak, Vishdhar and Sheshnag. These names only apply when a complete Kaal Sarp actually forms.
↳ Is Kaal Sarp Dosha dangerous?
No. It is not named in Brihat Parashara Hora Shastra, it is a later and disputed concept, and this site does not treat it as a source of fear. A great many ordinary lives carry this placement. Where it is taken seriously at all, it is read as a marker of intensity or an unusual life pattern, not a warning of misfortune.
↳ Do I need my exact birth time for this calculator?
It helps, mainly because naming the specific type of a complete Kaal Sarp depends on your ascendant, which needs an accurate birth time. Whether the condition itself is present, complete, partial or absent, depends only on the seven planets and the Rahu-Ketu axis, which are less sensitive to birth time than the ascendant is.
For the full chart, including every other dosha this site tests, see the free kundali tool. If you would like to talk through your chart with someone, see consultation.