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Rahu Kaal Calculator | Find Rahu Kaal Time For Date

A Rahu Kaal Calculator helps calculate rahu kaal 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

WeekdayRahu Kaal segmentTypical time (6 AM–6 PM day)
Sunday8th16:30 – 18:00
Monday2nd07:30 – 09:00
Tuesday7th15:00 – 16:30
Wednesday5th12:00 – 13:30
Thursday6th13:30 – 15:00
Friday4th10:30 – 12:00
Saturday3rd09:00 – 10:30

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

Interpretation guide

SituationGuidance
New venture, signing, travel startTraditionally avoided during Rahu Kaal
Routine ongoing workNo restriction — Rahu Kaal applies to new beginnings
South IndiaObserved strictly; many plan the day around it
North IndiaObserved more loosely; muhurat tools weigh other factors too
Work already begun before Rahu KaalContinuing it is considered acceptable

lightbulb Worked example

Let's say you are using the Rahu Kaal Calculator. A Rahu Kaal Calculator helps calculate rahu kaal calculator using Vedic astrology, panchang, calendar, muhurat, Vastu or naming inputs. It gives an instant browser-based result with a transparent 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 Rahu Kaal = sunrise + (segment−1) × (sunset − sunrise)/8, segment fixed per weekday 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: Rahu Kaal = sunrise + (segment−1) × (sunset − sunrise)/8, segment fixed per weekday

How Rahu Kaal is calculated

The tool divides the daytime — sunrise to sunset — into 8 equal segments and applies Rahu Kaal = sunrise + (segment−1) × (sunset − sunrise) ÷ 8, where the segment number is fixed by the weekday: Monday 2nd, Saturday 3rd, Friday 4th, Wednesday 5th, Thursday 6th, Tuesday 7th, Sunday 1st.

Example: for a Monday sunrise at 6:00 AM and sunset at 6:00 PM (12 hours), each segment is 1.5 hours, so Rahu Kaal runs 7:30–9:00 AM.

Reading the result: Rahu Kaal is traditionally considered inauspicious for starting new ventures, important purchases, and travel, though routine activities and existing work are not prohibited. The exact window shifts daily with the sunrise and sunset times at your location, which the calculator computes from your coordinates.

Authoritative source: Hindu astrology reference

Frequently asked questions

What is Rahu Kaal?
Rahu Kaal (Rahu Kalam) is a daily period of about 90 minutes ruled by Rahu, considered inauspicious for starting new work, journeys, purchases or ceremonies. It is one-eighth of the time between sunrise and sunset, so its clock time changes every day and city.
Why does Rahu Kaal change every day?
Two reasons: the segment number depends on the weekday (2nd eighth on Monday, 5th on Wednesday, 8th on Sunday…), and the day length depends on the date and your latitude. Both sunrise and sunset shift daily, so the same weekday still gives slightly different times across the year.
Is Rahu Kaal the same in every city?
No. It is computed from local sunrise and sunset. On the same Wednesday, Delhi’s Rahu Kaal can be 12:21–14:05 while a city further west or at another latitude gets noticeably different times. Always compute it for your own coordinates.
What should be avoided during Rahu Kaal?
Traditionally: starting a new venture, signing contracts, beginning a journey, housewarming, engagement or any first-time activity. Ongoing work, routine duties and anything already started earlier are not restricted. Hanuman worship during Rahu Kaal is actually considered favourable.
Is Rahu Kaal observed at night?
The classical Rahu Kaal applies to the daytime (sunrise to sunset). A parallel night sequence exists in some traditions, but almost all panchangs — including this calculator — publish the daytime Rahu Kaal, which is the one people plan around.
What does the Rahu Kaal Calculator do?
A Rahu Kaal Calculator helps calculate rahu kaal 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. 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 Rahu Kaal Calculator use?
It divides the daytime (sunrise to sunset) into 8 equal segments and computes Rahu Kaal = sunrise + (segment−1) × (sunset − sunrise) ÷ 8, where the segment number is fixed by the weekday — Monday 2nd, Saturday 3rd, Friday 4th, Wednesday 5th, Thursday 6th, Tuesday 7th, Sunday 1st. Enter the date and location and the tool returns the inauspicious window.
Is the Rahu Kaal Calculator free and private?
Yes — the Rahu Kaal 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 Rahu Kaal Calculator?
The Rahu Kaal Calculator applies the standard formula: Rahu Kaal = sunrise + (segment−1) × (sunset − sunrise)/8, segment fixed per weekday. 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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