Rules: Male = 11 − reduced-year, Female = reduced-year + 4. If result is 10 → Kua = 1. If Kua is 5 → Male treats as 2, Female treats as 8.
Enter details to calculate your Kua number.
Note: Some traditions adjust for births before lunar new year; this uses the Gregorian year you enter.
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Fill the inputs on the left and click Calculate.
