The Book of Changes · 64 hexagrams · 384 lines
Hold one question in mind. Each toss of three coins draws one line; six lines make your hexagram.
Or start from your birth time:BaZiLife CandlestickZi Wei
Hexagram 27
Hexagram of the day
頤：貞吉。觀頤，自求口實。
Î indicates that with firm correctness there will be good fortune (in what is denoted by it). We must look at what we are seeking to nourish, and by the exercise of our thoughts seek for the proper aliment.
One of the 64, picked by today's date for you to read — not a casting for you.
Read the I Ching
Every hexagram is two trigrams, one above the other. Learn these eight and you can read the structure of all sixty-four: what each pictures, which element and family member it stands for, and where it sits in the two classical arrangements.
Birth charts
The I Ching answers one question. Your birth time answers a different one: who you are, and how the decades ahead are shaped. Enter it once and read it three ways. The three charts below all come from the same sample birth.
01BaZi · Four Pillars
Your birth moment written as four pillars of heavenly stems and earthly branches — the Day Master at the centre, the five elements in balance or not.
Free · no sign-up · ready in a minuteFull report from $19
02Life Candlestick · a heuristic, not a prediction
The BaZi chart above, drawn across ninety years. One candle for every year from birth to 90, scored from your Luck Pillars, each year's pillar and how they meet your chart. Busy stretches and quiet ones, at a glance — with the rubric published in full.
Sample · born 1991-04-21 07:40, Shanghai · not a real person
A heuristic score — one way of reading the chart, not a prediction.
Use the left and right arrow keys to move between years, plus and minus to zoom, Home and End to jump to the first or last year, Escape to clear.
| Year | Age | Close |
|---|---|---|
| 1991 | 0 | 45.3 |
| 1992 | 1 | 54.5 |
| 1993 | 2 | 55.0 |
| 1994 | 3 | 53.3 |
| 1995 | 4 | 60.2 |
| 1996 | 5 | 65.9 |
| 1997 | 6 | 63.1 |
| 1998 | 7 | 61.4 |
| 1999 | 8 | 59.3 |
| 2000 | 9 | 58.0 |
| 2001 | 10 | 57.5 |
| 2002 | 11 | 66.2 |
| 2003 | 12 | 67.3 |
| 2004 | 13 | 64.4 |
| 2005 | 14 | 58.8 |
| 2006 | 15 | 55.9 |
| 2007 | 16 | 62.1 |
| 2008 | 17 | 60.3 |
| 2009 | 18 | 53.7 |
| 2010 | 19 | 53.2 |
| 2011 | 20 | 51.7 |
| 2012 | 21 | 59.7 |
| 2013 | 22 | 63.8 |
| 2014 | 23 | 64.6 |
| 2015 | 24 | 61.8 |
| 2016 | 25 | 57.3 |
| 2017 | 26 | 50.8 |
| 2018 | 27 | 43.9 |
| 2019 | 28 | 48.1 |
| 2020 | 29 | 48.2 |
| 2021 | 30 | 42.7 |
| 2022 | 31 | 51.7 |
| 2023 | 32 | 54.9 |
| 2024 | 33 | 55.1 |
| 2025 | 34 | 55.4 |
| 2026 | 35 | 58.0 |
| 2027 | 36 | 56.0 |
| 2028 | 37 | 49.8 |
| 2029 | 38 | 42.5 |
| 2030 | 39 | 38.1 |
| 2031 | 40 | 43.6 |
| 2032 | 41 | 53.4 |
| 2033 | 42 | 52.7 |
| 2034 | 43 | 54.0 |
| 2035 | 44 | 52.1 |
| 2036 | 45 | 49.0 |
| 2037 | 46 | 47.6 |
| 2038 | 47 | 43.8 |
| 2039 | 48 | 38.7 |
| 2040 | 49 | 33.8 |
| 2041 | 50 | 26.5 |
| 2042 | 51 | 31.9 |
| 2043 | 52 | 42.2 |
| 2044 | 53 | 44.3 |
| 2045 | 54 | 39.8 |
| 2046 | 55 | 39.3 |
| 2047 | 56 | 37.8 |
| 2048 | 57 | 33.7 |
| 2049 | 58 | 31.9 |
| 2050 | 59 | 30.8 |
| 2051 | 60 | 24.6 |
| 2052 | 61 | 30.7 |
| 2053 | 62 | 29.6 |
| 2054 | 63 | 27.2 |
| 2055 | 64 | 33.7 |
| 2056 | 65 | 50.1 |
| 2057 | 66 | 52.7 |
| 2058 | 67 | 53.7 |
| 2059 | 68 | 53.0 |
| 2060 | 69 | 52.4 |
| 2061 | 70 | 52.2 |
| 2062 | 71 | 61.0 |
| 2063 | 72 | 62.2 |
| 2064 | 73 | 59.4 |
| 2065 | 74 | 53.8 |
| 2066 | 75 | 52.4 |
| 2067 | 76 | 59.4 |
| 2068 | 77 | 58.0 |
| 2069 | 78 | 51.6 |
| 2070 | 79 | 51.2 |
| 2071 | 80 | 49.7 |
| 2072 | 81 | 57.7 |
| 2073 | 82 | 61.9 |
| 2074 | 83 | 62.7 |
| 2075 | 84 | 59.9 |
| 2076 | 85 | 48.4 |
| 2077 | 86 | 38.5 |
| 2078 | 87 | 29.8 |
| 2079 | 88 | 33.2 |
| 2080 | 89 | 32.9 |
| 2081 | 90 | 27.2 |
祿Prosperity權Power
03Zi Wei Dou Shu
Twelve palaces — self, siblings, partner, wealth and the rest — and the stars that settle in each, from your birth hour.
Free · no sign-up · ready in a minuteFull report from $19
The I Ching library
Every hexagram with its Judgment, Commentary, Image and six lines in Chinese, Legge's 1882 translation and a plain-language note.
Learn
What a hexagram is, what the Judgment, Image and line texts do, how to read a cast with or without changing lines, and which translations to trust — step by step.
How three coins build an I Ching hexagram: coin values, the numbers 6 to 9, moving lines, the changed hexagram and the order to read it all in.
Old yin, old yang and the hexagram they change into; Zhu Xi's rules for one to six moving lines; a worked example — so you always know which sentence is speaking.
More systems
Plum Blossom Numerology
Shao Yong's method: a few numbers, this moment or the words of your question open a hexagram, read through its Body and Use trigrams.
Cast a Plum Blossom reading →Chinese Zodiac · 2027
Your animal by the exact Start of Spring — not 1 January — and how 2027, the Fire Goat year, meets it.
Find my zodiac sign →Pricing
Sign in and your first short AI readings are free. For a full answer to one question, take a deep reading — no subscriptions.
For one question that matters.
About $2 a reading.
For a regular practice: about $1.67 a reading.
The complete picture: your full BaZi report, a month-by-month 2027, and the whole Life Candlestick Chart.
Your Four Pillars in depth, from the Day Master to every Luck Pillar.
All twelve palaces and their stars, read together.
Unseal every year of your Life Candlestick Chart.
Your hexagram read line by line with the Najia method.
A full reading of your Plum Blossom casting, from Body and Use to the moving line.
A full reading of two charts together, written from both Four Pillars and the six-dimension score.
No. iching.tools presents traditional Chinese systems as a way to reflect, not to predict.
Entirely in code, before any AI is involved. Solar terms come from astronomical tables to the minute; the year changes at the Start of Spring (立春); the day and hour pillars use true solar time from your birthplace's longitude. Zi Wei Dou Shu is computed with the open-source iztro library. The same input always gives the same chart, and the calculation notes are shown on every result.
It only writes the words. The AI receives the already-calculated chart as data and turns it into plain language. Every reading is checked against the chart: it may not add, remove or change a pillar, star or line, and it is kept calm — no fear, no health or lifespan claims. If a draft fails those checks it is rewritten or replaced by a template.
For BaZi, yes: you'll get three pillars (year, month and day) and the hour pillar is left out; some details, like strength, become less certain and we say so. Zi Wei Dou Shu needs the hour, so it asks for one. The zodiac calculator only needs the date.
Most calendars change animal on 1 January or at Chinese New Year. The Four Pillars tradition changes it at the Start of Spring (立春), around 4 February, to the minute. If you were born between late January and mid-February, your animal can differ — the calculator shows both.
