BaZi calculator

Enter your birth date below. You will get the ten-year periods your life divides into, and a description of the one you are in now.

An example — someone born 1990-04-12. Yours takes about ten seconds.

You didn't change. The chapter did.

We read the years you have already lived — and describe them.
You decide whether it is right. You lived them; nobody has to take our word for it.
Only then do you pay, and only for the part you cannot check yet.

Free. No signup, no email, no card. Ten seconds, and you can leave with it. And no questions about you — anyone can be right after asking. Being right from a date alone is the entire point.

Date of birthUse the ordinary calendar date. If the only date you have is a lunar one, look up its solar equivalent first — entered as it stands it puts the whole chart on the wrong month.Time of birthLeave it if you don't know — your chapter years come out the same either way. It is worth digging out, though. Without it the chart is read on six slots instead of eight, and measured across twenty readings that costs more than it sounds: how far a description sits from one that would fit anyone drops by about a third.Where you were bornNot for the record — the chart is built from the clock where you were born, so a birth abroad needs that place and not this one. Pick the nearest city in the same time zone.

Sex at birth

MaleFemale

This sets which direction your chapters run in.

Your birth date, and nothing else.

What this calculates

BaZi — literally "eight characters" — describes a birth moment as four pairs of symbols: one for the year, one for the month, one for the day, one for the hour. Those eight characters are the chart.

The part most people come for is not the chart itself but what sits on top of it: the luck cycles, ten-year periods that run in sequence from the month pillar. Each one has a different character. You are inside one right now, and it will end.

Why the birth time is optional here

Western natal charts need a birth time — without it the rising sign is unknown and roughly half the reading disappears. The ten-year cycles are derived from the month pillar, so they are exact whether or not you know the hour. Leaving the time as "I don't know" costs you the hour pillar and nothing else.

How the dates are worked out

The year does not turn over on 1 January. It turns at the solar term lichun, in early February, so a birth in late January belongs to the previous year of the cycle. Month boundaries follow the twelve major solar terms, which are astronomical events rather than calendar dates — this calculator solves for them directly instead of reading a lookup table, and applies the historical time zone and daylight saving rules in force at your birth place on that date.