Khavedamsa Chart Calculator (D40)

The **Khavedamsa (D40)** divides each zodiac sign into forty equal parts of 45′ each, and is one of the less commonly consulted but classically documented divisional charts, traditionally read for auspicious and inauspicious inherited effects from the maternal side of the family.

Ayanamsa: Lahiri (Chitrapaksha) · Division: D40 (fortieth-harmonic) · Rule: odd sign→Aries, even sign→Libra, then count forward

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Don't know your birth time? We'll approximate your chart using 6:00 AM local time. The Lagna (Ascendant) and house positions will be approximate.

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Creator

James Whitfield

Reviewers

Sarah Mitchell, M.A. in Cultural Astronomy & Astrology and Marcus Reynolds, Professional Astrologer & Astronomer

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Last updated: May 9, 2025

What Is the Khavedamsa (D40) Chart?

Each sign is divided into forty equal 45′ parts. An odd sign’s count starts from Aries, an even sign’s from Libra — one of the finer classical divisions, included in the traditional shodashavarga (sixteen-chart) system.

Reading Maternal-Line Effects From the D40

Classical texts assign the D40 to auspicious and inauspicious effects (shubha-ashubha phala) specifically inherited through the maternal line — general fortune or difficulty a person carries forward from their mother’s side of the family.

Consulted as a Supporting Reference

Like several of the finer divisional charts (D27, D45, D60), the D40 is rarely the primary chart in a reading — it’s consulted as supporting evidence alongside the D1 and other more central divisional charts, particularly when maternal-line questions are specifically relevant.

Khavedamsa Chart Calculator (D40) FAQs

What is the Khavedamsa (D40) chart used for?

Studying auspicious and inauspicious effects inherited specifically through the maternal side of the family.

How is the D40 calculated?

Each sign is divided into forty equal 45′ parts, with odd signs counting from Aries and even signs from Libra.

Is the D40 commonly used?

Less commonly than the D9 or D10 — it’s a supporting reference chart, consulted particularly for maternal-line questions.

What is the shodashavarga system?

The classical set of sixteen divisional charts (including D40) that a complete traditional Vedic reading can draw on, each covering a different life theme.

Do I need an accurate birth time?

Yes — the D40 Lagna depends on your D1 Lagna, which requires a precise birth time.

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