Qi Men Dun Jia Calculator

With our Qi Men Dun Jia Calculator you get Qi Men Dun Jia charts with the most accurate data. QMDJ calculator — your professional online tool.


Detailed data

Astronomical and calendrical data are calculated with fraction of a second precision.

Extended calculations within the chart.


Flexible pricing

You can use limited number of calculations for free.

You can buy any number of days of unlimited usage. The more days you buy at once, the lower the price of each day.

Key features


Qi Men Dun Jia Calculator uses best models of mathematical astronomy.
Such concepts like aberration and nutation of ecliptics, Equation of Time are included in the math behind.

Qimen Schools

With QMDJ Calculator you can use QMDJ Charts from probably any Qimen School.
Calculation settings allow you to define rules of Calendrical calculations and Qimen Chart construction, accepted in your school.

Flexible pricing

QMDJ Calculator gives 10 free chart calculations within every 30 days period.
If you need more, you can purchase any number of days of unlimited calculations. Our price model contain volume discounts.

Check prices

You can make your purchase at the access purchase page.

Supported by Daomac® and Dr. Alejandro Peñataro