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Grahan Dosha Calculator | Identify Eclipse-Related Dosha

A Grahan Dosha Calculator helps calculate grahan dosha calculator using Vedic astrology, panchang, calendar, muhurat, Vastu or naming inputs. It gives an instant browser-based result with a transparent method and source notes. Use it for planning and learning, then verify important ritual or marriage decisions with a qualified practitioner.

Last updated: June 2026 · Free · No sign-up required

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Results

Enter values above and click Calculate to see your result instantly.

Quick reference

CombinationDosha type
Sun + RahuSurya Grahan Dosha (Rahu-side)
Sun + KetuSurya Grahan Dosha (Ketu-side)
Moon + RahuChandra Grahan Dosha (Rahu-side)
Moon + KetuChandra Grahan Dosha (Ketu-side)

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For ceremonies, marriage matching and legal decisions, verify with a qualified practitioner and your regional panchang.

Interpretation guide

ResultReading
Not presentSun and Moon both clear of the nodes (>12° away)
Surya Grahan presentPossible confidence/father/authority themes; remedies centre on Sun worship
Chandra Grahan presentPossible emotional/mother/mind themes; remedies centre on Moon worship

lightbulb Worked example

Let's say you are using the Grahan Dosha Calculator. A Grahan Dosha Calculator helps calculate grahan dosha calculator using Vedic astrology, panchang, calendar, muhurat, Vastu or naming inputs. It gives an instant browser-based result with a Enter the values that match your situation into the input fields and press calculate — using realistic numbers makes the result directly useful for you.

Result: The calculator instantly applies the formula Grahan Dosha present if angular distance(Sun or Moon, Rahu or Ketu) < 12° and returns the result with appropriate precision.

What this means: Read the result in the context of what you are measuring. The step-by-step breakdown lets you confirm the math and understand which input most affects the outcome.

Formula & methodology

Formula: Grahan Dosha present if angular distance(Sun or Moon, Rahu or Ketu) < 12°

The Grahan Dosha Calculator is built on a well-established calculation method. It uses the formula Grahan Dosha present if angular distance(Sun or Moon, Rahu or Ketu) < 12° to turn your inputs into a reliable result. A Grahan Dosha Calculator helps calculate grahan dosha calculator using Vedic astrology, panchang, calendar, muhurat, Vastu or naming inputs. It gives an instant browser-based result with a transparent method and source The steps are shown on the page so you can follow the reasoning from input to output.

  1. Enter birth date, time and place.
  2. Sidereal longitudes of Sun, Moon, Rahu and Ketu are computed.
  3. The smallest angular separation of each luminary from each node is measured.
  4. If any separation is under the classical 12° orb, the dosha and its type are reported.

Worked example — 1 Jan 1990, 06:00, Delhi: the Moon in Kumbha falls within 12° of a node, so Chandra Grahan Dosha is present while the Sun stays clear — the calculator names the luminary, the node and the orb it used.

Authoritative source: Hindu astrology reference

Frequently asked questions

What is Grahan Dosha?
A birth-chart condition where the Sun or Moon sits close to Rahu or Ketu — the configuration that causes eclipses. Within about 12° the luminary is considered "eclipsed", which classical texts read as a dosha affecting confidence (Sun) or mind (Moon).
Does being born during an actual eclipse matter?
In the classical rule used here, Grahan Dosha is present when the Sun or Moon is within 12° of Rahu or Ketu at birth — an eclipse-like configuration — regardless of whether an actual eclipse was visible. Many practitioners do emphasize real eclipses too, but the dosha calculation itself is angular. The calculator checks the angular distance condition and reports the dosha status.
What orb does this calculator use?
The Grahan Dosha Calculator is a free online tool that a grahan dosha calculator helps calculate grahan dosha calculator using vedic astrology, panchang, calendar, muhurat, vastu or naming inputs. it gives an instant browser-based result with a transparent method and source notes. use it for planning and. You enter a few values, and it returns an accurate result together with a step-by-step explanation, so it works as both a calculator and a quick reference for the underlying concept.
What are the remedies for Grahan Dosha?
Common traditional remedies include reciting the Aditya Hridaya or Surya mantra on Sundays, donating wheat, jaggery, or copper, fasting on eclipse days, and performing the prescribed Grahan Shanti puja at a temple. Remedies are believed to reduce the dosha's effects, not erase the karmic lesson. Consult a qualified Jyotishi for a remedy plan suited to your chart.
Is Grahan Dosha the same as Kaal Sarp Dosha?
No. Kaal Sarp needs all seven planets hemmed between Rahu and Ketu; Grahan Dosha only needs the Sun or Moon conjunct one node. A chart can have either, both or neither — there is a separate Kaal Sarp calculator on CalcaTools.
What does the Grahan Dosha Calculator do?
A Grahan Dosha Calculator helps calculate grahan dosha calculator using Vedic astrology, panchang, calendar, muhurat, Vastu or naming inputs. It gives an instant browser-based result with a transparent method and source notes. Use it for planning and. The calculator takes your inputs, applies the standard calculation, and returns a clear result so you can make an informed decision without doing the math by hand.
What formula does the Grahan Dosha Calculator use?
The Grahan Dosha Calculator applies the standard formula: Grahan Dosha present if angular distance(Sun or Moon, Rahu or Ketu) < 12°. The tool walks through each step of the calculation so you can verify the numbers yourself.
Is the Grahan Dosha Calculator free and private?
Yes — the Grahan Dosha Calculator. There is no sign-up, no paywall, no trial, and no limit on how many calculations you can run. CalcaTools covers its costs with non-intrusive display advertising, so the calculator itself never asks for payment or restricts any feature.
How accurate is the Grahan Dosha Calculator?
The Grahan Dosha Calculator applies the standard formula: Grahan Dosha present if angular distance(Sun or Moon, Rahu or Ketu) < 12°. It is tested against published worked examples before launch and uses native double-precision arithmetic, so results are accurate to typical precision for the values you enter — with no intermediate rounding that could distort the answer.

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