Kaal Sarp check: are your seven planets hemmed in by the nodes?

Last updated 25 October 2026

Give your birth date, plus the time and place when you have them, and the calculator tests whether the seven planets are bunched into the half of the zodiac marked off by Rahu and Ketu. Below the calculator: how the pattern is counted, why astrologers disagree about it, and how to keep a conversation about it calm and useful.

How the check is done

The lunar nodes, Rahu and Ketu, are always 180 degrees apart, so the line joining them splits the zodiac in half. The calculator places the seven classical planets, from the Sun out to Saturn with the Moon included, in the sidereal zodiac (Lahiri ayanamsa) and asks a single question: is every one of them inside the same half? Uranus, Neptune and Pluto play no part.

Practitioners count this in slightly different ways, so the result sets out four conventions next to each other:

• Exact degrees or whole signs. The usual definition compares exact longitudes. The sign method works sign by sign between the two nodes, and a planet sharing a sign with either node is treated as inside.
• Which node position. The mean node is a smoothed average; the true node wobbles either side of it. The two can sit nearly two degrees apart, which matters whenever a planet hugs the axis.

The headline uses the degree method with the mean node. If any planet lies within one degree of Rahu or Ketu, the calculator warns you, because that is where the four conventions most often disagree. With a birth time and place it also works out the rising sign and names the type from Rahu's house, counting signs from the Lagna: Anant when Rahu is in the 1st, Kulik in the 2nd, through to Sheshnag in the 12th. Without a time it scans the whole day and shows when, if ever, the answer changes.

What the result means in a reading

A yes from this calculator is a statement about geometry: every planet happens to fall in one half of the zodiac. Whether that geometry carries meaning is itself a matter of debate among astrologers. Because the pattern has no place in the foundational texts, practitioners fall roughly into three camps: those who ignore it, those who mention it as a minor colouring, and those who treat it as significant. Knowing which camp your astrologer belongs to tells you how to weigh what they say.

Those who do use it usually look further before saying anything. They consider which houses Rahu and Ketu occupy and what those houses represent in this chart, the condition of the planets close to the axis, and whether the nodes' periods (Rahu or Ketu dasha) are running now or soon. A pattern that only appears under one of the four conventions, or only for part of the birth day, deserves to be held lightly.

It is also a label that is frequently used to sell rituals. Warning signs include a diagnosis made before the astrologer has seen your full chart, a fixed package price for a remedy, claims that harm will follow if you refuse, and pressure to decide during the call. Our guide to fake astrologer warning signs describes these tactics in more detail. Any worry about your health, finances or family deserves a qualified professional as well.

Questions to ask your astrologer about Kaal Sarp

• Do you use Kaal Sarp at all, and if so, where does the idea come from in your tradition?
• Do you compare exact degrees or whole signs, and which node position do you use?
• My chart only shows the pattern under one convention: does that change how you read it?
• Which houses do Rahu and Ketu occupy in my chart, and what does that say on its own?
• Is a Rahu or Ketu period running for me, and how does it affect the question I came with?
• If you suggest a remedy, what is it for, what does it cost, and what happens if I choose not to do it?

For a wider list of questions that keep a session useful, see questions to ask an astrologer.

The twelve named types

The names follow Rahu's house counted from the Lagna, with Ketu always six signs away in the opposite house. They are given only when the seven planets share a half, and they come from the same later tradition as the pattern itself.