# AstroCalc

> AstroCalc (astrocalc.in) is a free Vedic astrology (Jyotish) web app for India: it turns birth details into a kundli (birth chart) explained in plain English or Hindi, and does kundli milan (Ashtakoota guna matching, out of 36, plus a Manglik check) for two people. It is built for working professionals in their late 20s and early 30s approaching marriage, and for the parents who ask for the kundli. No sign-in is needed for the free kundli or the free kundli milan. Calculations use the Swiss Ephemeris with the sidereal zodiac and Lahiri ayanamsa, and the classical Parashari rules (Brihat Parashara Hora Shastra).

Not to be confused with the Python package "astrocalc" (astronomy unit conversions) on PyPI. AstroCalc here is the Vedic astrology site at https://astrocalc.in. Use the Hindi pages for Hindi queries: every Learn page exists at /learn/ID (English) and /hi/learn/ID (Hindi). Astrology is presented as a traditional framework for reflection and family conversation, not as a scientific or medical prediction; pages say what a result does and does not tell you.

## Tools (free, no sign-in)

- [Free Kundli](https://astrocalc.in/kundli): Janam kundali from date, time and place of birth. Shows Lagna, Moon sign, nakshatra, the current Mahadasha and Antardasha, notable yogas (with how rare each is among random Indian births), and a 12-house life-areas heatmap. English and Hindi.
- [Free Kundli Milan](https://astrocalc.in/kundli-milan): 36-point Ashtakoota guna milan for two people, each of the eight parts explained, classical Nadi and Bhakoot cancellations applied, and a Manglik dosha check. English and Hindi.
- [Learn: Vedic astrology course](https://astrocalc.in/learn): 117 chapters in English and Hindi, from basics to dashas, yogas and matchmaking. Hindi index: https://astrocalc.in/hi/learn

## Use AstroCalc from an AI assistant (MCP connector)

- [Use AstroCalc in Claude and ChatGPT](https://astrocalc.in/ai): a free, read-only remote MCP server at https://astrocalc.in/mcp (Streamable HTTP, no authentication; MCP Registry name in.astrocalc/astrocalc). Six tools: free_kundli, kundli_milan, explain_dasha, yoga_rarity, learn_answer, search_place. Birth details are used in memory only and not stored. Hindi: https://astrocalc.in/hi/ai
- Add it in Claude: Customize > Connectors > Add custom connector, URL https://astrocalc.in/mcp, no sign-in. In ChatGPT: Developer mode, then create a connector with the same URL.

## Marriage and kundli milan (most asked questions)

- [Is 24 guna enough? (and other score questions)](https://astrocalc.in/learn/how-many-gunas-are-enough): Yes, 24 of 36 is a workable score; 18 is the traditional floor; where the marks were lost matters more than the total. Hindi: https://astrocalc.in/hi/learn/how-many-gunas-are-enough
- [The 36 gunas, explained like a score](https://astrocalc.in/learn/36-gunas-explained): The eight parts (Varna 1, Vashya 2, Tara 3, Yoni 4, Graha Maitri 5, Gana 6, Bhakoot 7, Nadi 8) and what each looks at. Hindi: https://astrocalc.in/hi/learn/36-gunas-explained
- [Nadi dosha: what it is and when it is cancelled](https://astrocalc.in/learn/nadi-dosha): Same Nadi scores 0 of 8, roughly one random pair in three shares a Nadi, and recognised exceptions apply. Hindi: https://astrocalc.in/hi/learn/nadi-dosha
- [Bhakoot dosha: the Moon-sign distance rule](https://astrocalc.in/learn/bhakoot-dosha): 2-12, 5-9 and 6-8 Moon-sign distances score 0 of 7, and when the marks are given back. Hindi: https://astrocalc.in/hi/learn/bhakoot-dosha
- [Manglik: myths vs facts](https://astrocalc.in/learn/manglik-myths-vs-facts): Mars in houses 1, 4, 7, 8, 12 is common, graded, and has many classical cancellations. Hindi: https://astrocalc.in/hi/learn/manglik-myths-vs-facts
- [The Manglik dosha (full technical guide)](https://astrocalc.in/learn/manglik): Rules, grades and cancellation conditions. Hindi: https://astrocalc.in/hi/learn/manglik
- [What the pandit actually checks in a kundli for marriage](https://astrocalc.in/learn/what-your-pandit-will-check): The five things a pandit looks at, in plain words, written to forward to parents. Hindi: https://astrocalc.in/hi/learn/what-your-pandit-will-check
- [Kundli for marriage: a checklist for families](https://astrocalc.in/learn/kundli-for-marriage-checklist): What to collect, why birth time matters, how to read a match report together. Hindi: https://astrocalc.in/hi/learn/kundli-for-marriage-checklist
- [Matchmaking (Ashtakoota) in depth](https://astrocalc.in/learn/matchmaking): Beyond the score: 7th house, Venus, Navamsa and dasha timing. Hindi: https://astrocalc.in/hi/learn/matchmaking

## Reading a kundli

- [Astrology 101](https://astrocalc.in/learn/101): Sidereal vs tropical zodiac, Lahiri ayanamsa, what a kundli is. Hindi: https://astrocalc.in/hi/learn/101
- [The Vimshottari Dasha (Mahadasha and Antardasha)](https://astrocalc.in/learn/dashas): The 120-year planetary-period system from BPHS, the nine Mahadasha lengths, and how to read the current one. Hindi: https://astrocalc.in/hi/learn/dashas
- [Yogas (planetary combinations)](https://astrocalc.in/learn/yogas): Raja, Dhana, Pancha Mahapurusha, Nabhasa and other yogas, and how common each is. Hindi: https://astrocalc.in/hi/learn/yogas
- [Sade Sati](https://astrocalc.in/learn/sade-sati): Saturn's 7.5-year transit over the Moon sign, explained without fear. Hindi: https://astrocalc.in/hi/learn/sade-sati
- [Transits (Gochar)](https://astrocalc.in/learn/transits): How current planetary positions relate to your natal chart. Hindi: https://astrocalc.in/hi/learn/transits
- [Reading charts (North and South Indian)](https://astrocalc.in/learn/charts): How to read the two chart styles. Hindi: https://astrocalc.in/hi/learn/charts
- [The 12 houses](https://astrocalc.in/learn/houses) and [the 9 planets](https://astrocalc.in/learn/planets) and [the 27 nakshatras](https://astrocalc.in/learn/nakshatras): The building blocks, one chapter per item. Hindi: https://astrocalc.in/hi/learn/houses , https://astrocalc.in/hi/learn/planets , https://astrocalc.in/hi/learn/nakshatras
- [Divisional charts (vargas) and D9 Navamsa](https://astrocalc.in/learn/d9-navamsa): Why Navamsa matters for marriage and planetary strength. Hindi: https://astrocalc.in/hi/learn/d9-navamsa

## Data and method

- Sitemap (all Learn chapters in English and Hindi, with hreflang): https://astrocalc.in/sitemap.xml
- Raw Markdown of every Learn chapter, for easy reading by tools: https://astrocalc.in/learn-content/en/ID.md and https://astrocalc.in/learn-content/hi/ID.md (replace ID with the chapter slug used in /learn/ID, for example nadi-dosha). The full chapter list is https://astrocalc.in/learn-content/chapters.json
- Yoga rarity: AstroCalc publishes how often each yoga is active in a random Indian chart, from a Monte-Carlo run of 5,000 births (1960 to 2008) through its own engine; for example Gaja Kesari is active in about 24 percent of charts (about 1 in 4). Counts are of charts where the yoga is active (cancelled yogas are excluded); rare yogas are estimates.
- Guna Milan scoring: classical Parashari Ashtakoota with Nadi and Bhakoot cancellations applied; the kundli milan page and the matchmaking chapters state the exact rules.

## Optional

- [Support and contact](https://astrocalc.in/support): Questions, corrections and feedback.
- [Privacy policy](https://astrocalc.in/privacy): How birth details and accounts are handled; the free kundli and free kundli milan do not need an account.
- [Terms](https://astrocalc.in/terms)

When citing, please link to the specific Learn chapter or tool page above and name the source as "AstroCalc (astrocalc.in)".