Yoga and Dosha Calculator
A free Vedic calculator that screens your birth chart for the classical yogas (planetary combinations) and doshas — from the Pancha Mahapurusha and Raja yogas to the Mangal and Kaal Sarpa checks.
A yoga is a specific combination of planets that the classical texts single out by name; a dosha is a placement the same texts flag for caution. Jagannatha Hora screens a birth chart against 284 yoga rules and eight doshas at once, so you see which named combinations are actually present instead of checking each rule by hand.
Enter a birth date, time and place and the calculator lists every yoga it finds — Raja, Dhana, the five Pancha Mahapurusha yogas, Gaja Kesari and more — with the rule that forms each, alongside eight dosha checks, among them Mangal (Manglik), Kaal Sarpa and Pitra. The combinations are listed for an astrologer to weigh; on the chart owner's view each one also carries the effect statement the texts give for it.
How the classical yogas form
Every yoga has a precise, chart-independent rule. These are some of the best-known combinations and the classical placement that defines each, cited by their number in B.V. Raman's Three Hundred Important Combinations; the engine adds a few further conditions to some of them.
| # | Yoga (combination) | Forming rule from the chart |
|---|---|---|
| 1 | Gaja Kesari | Jupiter in a kendra (1st, 4th, 7th or 10th) from the Moon (BVR-1); the engine also asks for a benefic with or aspecting Jupiter, as BPHS does. |
| 2 | Ruchaka (Mahapurusha) | Mars in Aries, Scorpio or Capricorn AND in a kendra from the Lagna (BVR-22). |
| 3 | Bhadra (Mahapurusha) | Mercury in Gemini or Virgo AND in a kendra from the Lagna (BVR-23). |
| 4 | Hamsa (Mahapurusha) | Jupiter in Cancer, Sagittarius or Pisces AND in a kendra from the Lagna (BVR-19). |
| 5 | Malavya (Mahapurusha) | Venus in Taurus, Libra or Pisces AND in a kendra from the Lagna (BVR-20). |
| 6 | Sasa (Mahapurusha) | Saturn in Capricorn, Aquarius or Libra AND in a kendra from the Lagna (BVR-21). |
| 7 | Budha-Aditya (shown as Nipuna) | The Sun and Mercury together in one sign (BVR-24). |
| 8 | Kemadruma | No planet other than the Sun with the Moon or beside it (2nd/12th), and none in the kendras from the Lagna (BVR-5). |
Each yoga is read on its own, and several often apply to the same chart; the texts also weaken or cancel some by other placements. The calculator reports the combinations it detects for an astrologer to interpret; the effect statements it shows are the texts' own, not a forecast for any person.
How to read the result
Start with the Summary tiles: Total Yogas, Raja Yogas, General Yogas and Doshas Present. They count rows, and where the engine fires several detectors for one classical yoga, such as numbered variants of the same combination, the page folds them into one row, so each tile matches what can be counted below. Every yoga here is read in the rasi chart, which is what the D1 badge under each name records.
In the Raja Yogas table, the Pairs column names the planet pairs behind each yoga. Narasimha Rao defines the basic raja yoga as a link between a quadrant lord and a trine lord, by conjunction, mutual graha drishti or exchange, and scales its magnitude by the two planets' strength and by how close the conjunction or aspect is, within about 6 degrees. Following Parasara he also weighs both planets' Dashavarga amsas, which the Vaiseshikamsa rows on the Planetary Strength screen name.
Each General Yogas row gives the yoga's name and the condition that formed it, so the rule can be checked against the chart itself. Combinations whose classical readings are adverse or personal sit in a collapsed Further classical combinations section that the chart's owner opens with Show; on a shared link they are neither shown nor counted.
The Doshas table runs eight checks, Kala Sarpa, Manglik, Pitru, Guru Chandala, Ganda Moola, Kalathra, Ghata and Shrapit, lists the present ones first and, on the owner's view, gives each description and, for a present dosha, the reasons. The Manglik check counts Mars by sign from the lagna and applies the exceptions B.V. Raman gives; Raman's dictum also reckons Mars from the Moon and from Venus, and he asks that the dosha's quantum be judged by bhava rather than rasi.
Key terms
- Kendra
- A quadrant house: BPHS's Kendras are the lagna and the Bandhu (4th), Yuvati (7th) and Karma (10th) bhavas, and the basic raja yoga needs the lord of one of them.
- Kona (trikona)
- A trine house: BPHS gives the name Kona to the Putra (5th) and Dharma (9th) bhavas, and Narasimha Rao counts the lagna as both quadrant and trine for raja yoga.
- Parivartana
- An exchange of signs, each of two planets sitting in the other's sign, such as the 4th lord in the 5th and the 5th lord in the 4th.
- Dharma Karmadhipati Yoga
- The raja yoga formed by the lords of the 9th and 10th houses, the chief trine and the chief quadrant in Narasimha Rao's account.
- Vipareeta Raja Yoga
- A combination in which the lords of the 6th, 8th and 12th houses, the dusthanas, occupy or join dusthanas.
- Ganda Moola
- Flagged here when the Moon is in Ashwini, Ashlesha, Magha, Jyeshtha, Moola or Revati; BPHS's nakshatra Gandanta is narrower, two ghatikas either side of those junctions.
Yogas by name
Raja, Dhana, the five Pancha Mahapurusha yogas, Gaja Kesari and many more — each with the condition that formed it in the chart.
The main dosha checks
Mangal (Manglik), Kaal Sarpa, Pitra, Guru Chandala and four more — screened from the same chart, with the reasons for each one present.
Grounded in the classics
The yoga rules follow B.V. Raman's Three Hundred Important Combinations and BPHS, and the Manglik check applies the exceptions Raman lists.
Common questions
What is a yoga in Vedic astrology?
A yoga is a specific combination of planets that the classical texts single out by name — for example Gaja Kesari, Jupiter in a kendra from the Moon. It describes a computed placement, not a fixed outcome.
What is the difference between a yoga and a dosha?
Both are planetary patterns the texts name. A yoga usually marks a combination the texts describe as favourable; a dosha marks one they flag for caution, such as Mangal or Kaal Sarpa. This tool screens for both.
What are the Pancha Mahapurusha yogas?
Five yogas — Ruchaka, Bhadra, Hamsa, Malavya and Sasa — formed when Mars, Mercury, Jupiter, Venus or Saturn sits in its own or exaltation sign and in a kendra (1st, 4th, 7th or 10th) from the Lagna.
What is Manglik or Mangal dosha?
Mangal dosha is flagged when Mars occupies certain houses — commonly the 2nd, 4th, 7th, 8th or 12th — from the Lagna. The calculator applies the classical house rule and the standard exemptions.
Does this calculator predict my future?
No. It reports which classical combinations are present in the chart and the rule behind each. Interpreting them is the astrologer's work; any effect statement shown is the classical text's, not a forecast made by the tool.
What is Raj Yoga in a kundli?
In Narasimha Rao's account a raja yoga forms when a quadrant lord and a trine lord are linked by conjunction, mutual graha drishti or an exchange of signs, the lagna counting as both. He judges its magnitude by the two planets' strength and how close the link is. The Raja Yogas table lists the named raja yogas found, such as Dharma Karmadhipati, with their planet pairs.
Is Kaal Sarpa dosha found in the classical texts?
B.V. Raman wrote that, strictly speaking, Kala Sarpa does not find a place in the classical astrological literature, while describing it as all the planets lying between Rahu and Ketu. He held that it exists whichever way round they lie; the check here tests the Sun to Saturn in both directions.