One birth moment, computed twice: Chinese four pillars and the Vedic sidereal chart, then compared row by row — including the rows where the two traditions do not match.
Both charts from one ephemeris · sources kept side by side where they conflict · nothing blended into a single score
Plenty of sites will tell you your Chinese element and your Vedic element. Almost none will tell you that the two words mean different things, or that two of the ten elements in the two systems have no counterpart at all. Blending them produces a confident answer built on an invented mapping.
This page computes both charts from the same ephemeris and the same birth moment, then reports three separate lists: where the systems genuinely agree, where they give different answers to the same question, and which questions simply do not exist in one of the two. Where the sources themselves conflict — the element of Ketu, the element of Venus — both readings are printed rather than one chosen silently.
A disagreement is information. If your four pillars are heavy in one phase and your Vedic chart heavy in a different tattva, that is two independent descriptions of the same life, not a contradiction to be resolved. The practical use is to notice which description you recognise, and to be suspicious of any reading that needs both to line up before it works.
Neither, because they are not answering the same question. BaZi counts eight characters built from the Sun's position and the sexagenary day cycle. Jyotish counts nine grahas and the signs they occupy. A chart can be Earth-heavy in one and air-heavy in the other with no contradiction. What this page does is show you both counts and name what each one is counting, instead of blending them into a single number.
Because two of the ten members have no counterpart. Wood exists in wu xing and not among the five bhutas; Akasha exists among the bhutas and not in wu xing. Metal and Vayu are commonly paired — both contract, cut, and govern the lungs — but Metal is condensation and Vayu is motion, so that row is marked forced rather than solid. Any table that shows a tidy five-to-five mapping has invented two of its rows.
It does not; the two pages measure from different zero points. The tropical zodiac starts at the equinox, the sidereal zodiac at a fixed star point, and the gap between them — the ayanamsha — is about 24° today. This page prints both longitudes and the ayanamsha it used, so you can see the shift rather than guess at it.
No, and this is the practical difference. The Lagna moves through a whole sign every two hours or so, so a Vedic chart can change on a twenty-minute error. The finest unit in BaZi is the two-hour branch, which often survives the same error untouched. If your birth time is uncertain, the four pillars are the sturdier of the two readings.
The BaZi year turns at Li Chun, the moment the Sun reaches 315° of ecliptic longitude, in early February — not at Chinese New Year and not on 1 January. The Jyotish solar year turns at sidereal Aries. Births in January and early February are the ones this catches out most often.