Enter your birth date and see the full picture: elemental balance, Ten Major Stars, Twelve Supporting Stars, Tenchusatsu, phase relationships, and annual timing — all calculated in seconds.
What you get — completely free
CHART
Your full fate chart: Yin-Yang chart, Ten Major Stars, Twelve Supporting Stars, phase relationships, special stem-branches, and annual timing — no account needed.
AI
Register for free and receive 20 credits to try the AI reading — a live conversation where the AI interprets your chart and answers your questions in real time.
ACCOUNT
Save profiles (up to 5 free), run compatibility readings, and keep your AI reading history — all unlocked with a free account.
20 credits are granted immediately on registration. No payment required to start.
How the chart is calculated
Entering your date of birth produces a complete Yin-Yang Five Elements (陰陽五行) fate chart in seconds. The chart is calculated from the precise solar terms (節入り) and stem-branch (干支) of your year, month, and day of birth — the same astronomically-grounded calendar used in classical Japanese sanmeigaku since it was systematized over two thousand years ago.
What the calculator shows you
The output is split into two layers. The Yin Chart (陰占) shows the stems and branches of all four pillars (year, month, day, hour) along with hidden stems (蔵干) and the resulting elemental balance — this is the deep structural layer of your character. The Yang Chart (陽占) renders the same data onto a human-body diagram, mapping the Ten Major Stars (十大主星, personality types) and Twelve Supporting Stars (十二大従星, energy and life-stage indicators) into positions that correspond to your social roles.
On top of the natal chart, the calculator also surfaces your timing data: the Tenchusatsu group (天中殺, the two zodiac branches where ordinary support loosens), the major luck cycles (大運, ten-year periods), and the current year's annual fortune (年運). Together these tell you not only what you brought into life but where you are in its rhythm right now.
How this differs from horoscopes and fortune-telling
Yin-Yang Five Elements theory is not a prediction system. It is a structural language — closer to a natural philosophy or a map than to horoscope-style fortune-telling. The same chart, read by ten different sanmeigaku scholars, would highlight similar structural features (e.g. weak Fire, strong Water, year-pillar tenchusatsu) even though their narrative emphasis would differ. There is no equivalent of zodiac signs or generalised monthly horoscopes; everything is anchored in the precise stem-branch combination of your birth date.
FATE DECODER takes this structural information and lets an AI translate it into your own daily-life language. You don't have to memorize what 偏官 means or remember which stars are compatible — the AI explains the structure as it applies to the questions you actually bring.
What to do after the chart appears
The chart that the calculator returns is the same data set used by the full FATE DECODER service — there is no watered-down 'free' subset. Once you have your chart on screen, you can take a free account (20 credits granted immediately, no payment) to start an AI counselling session where the AI reads your chart live and answers follow-up questions. You can also save the chart as a profile (up to 5 profiles on the free plan), run compatibility readings against another person, and keep an interactive timing calendar.
If you want background reading before you ask the AI anything, the site's guide pages explain each concept in depth: the Yin / Yang chart split, the Ten Major Stars, Twelve Supporting Stars, Tenchusatsu, phase relationships, and the Sixty Stem-Branch Cycle that underlies the entire system.
Frequently asked questions
Is the fate chart calculator free?
Yes. Just enter your birth date to generate a full Yin-Yang Five Elements chart for free, with no account required — Yin chart, Yang chart, Ten Major Stars, Twelve Supporting Stars, Tenchusatsu, major luck cycles, and the current annual fortune.
What is a fate chart (meishiki)?
A fate chart is the blueprint you were born with, derived from the stem-branch and solar terms of your birth date. It expresses your character and life rhythm structurally, as a balance of the Five Elements and a configuration of stars.
How is this different from ordinary fortune-telling?
Yin-Yang Five Elements theory is not a generalised prediction like zodiac signs. It reads structure strictly from the stem-branch of your birth date, so the same chart shows the same structural features no matter who reads it.
What is my Day Master?
Your Day Master is the heavenly stem of your day pillar — the single character that stands for you in the chart. Everything else is read in relation to it: which elements support you, which ones drain you, and how the Ten Major Stars are derived. In the free calculation it sits at the centre of the chart, so you can spot it at a glance.
How do I read my fate chart?
Start with the Yin Chart. Find your Day Master, then look at the stems, branches, and hidden stems of the year, month, and day pillars to see where the five elements gather and where they are thin. Then move to the Yang Chart, where the same data is laid out on a human-body diagram: the central star is your core, and the Twelve Supporting Stars along the shoulder and legs show how your energy runs through early, middle, and later life. Finally, read the two together — the elemental balance explains why the stars behave the way they do.
Do I need to create an account?
No account is needed to view your chart. Creating a free account grants 20 credits so you can start an AI fate reading that interprets your chart live, plus save profiles and run compatibility readings.
