I Ching Hexagram Calendar

64 I Ching hexagrams, assigned by birth date — the real King Wen sequence, computed live for any day of the year.

Each of the 64 hexagrams governs a fixed ~5.7-day period of the year, starting with hexagram 1 (The Creative) at the winter solstice and running in King Wen sequence order through hexagram 64 (Before Completion). Traditional I Ching divination doesn't work this way at all — a hexagram is normally cast fresh for a specific question, by tossing coins or counting yarrow stalks, not read off a birth date. This calendar is a modern, evenly-spaced division of the year (one period per hexagram) built for a birthday reading, not an ancient divination method, and it's presented here honestly as that.

The 64 hexagrams themselves — their names, trigrams, and meanings — are real, centuries-old King Wen sequence content. The specific day-by-day calendar mapping one hexagram to your birth date is a modern convenience for this feature, not how I Ching divination has traditionally been done.

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Frequently asked questions
Is a birthday hexagram how I Ching divination traditionally works?

No — traditionally a hexagram is cast fresh for a specific question, by tossing coins or counting yarrow stalks, not read off a birth date. This calculator assigns each of the 64 King Wen hexagrams to a fixed ~5.7-day slice of the calendar year, a modern convenience for a birthday reading, the same kind of thing this site's rune calendar does for the 24 Elder Futhark runes.

Are the 64 hexagrams themselves real?

Yes — the King Wen sequence, its 64 hexagram names, and their trigram pairings are genuine, centuries-old reference content. What's modern here is only the specific day-by-day calendar mapping one hexagram to your birth date, not the hexagrams or their traditional meanings.

How is a birth hexagram determined?

By your birth month and day alone (no year needed) — each of the 64 hexagrams governs a fixed period of the year, starting with hexagram 1 (The Creative) at the winter solstice and running through the King Wen sequence to hexagram 64 (Before Completion).

What are the upper and lower trigrams?

Every hexagram is built from two of the 8 trigrams (Qian/Heaven, Kun/Earth, Zhen/Thunder, Kan/Water, Gen/Mountain, Xun/Wind, Li/Fire, Dui/Lake), stacked as an upper and lower trigram. The combination is part of the hexagram's traditional meaning, e.g. Water over Fire for hexagram 63.

Is this the same as casting an I Ching reading for a question?

No — a real I Ching consultation answers a specific question at a specific moment, cast by chance (coins or yarrow stalks) rather than assigned by date. This tool is a fixed birth-date lookup for exploring the 64 hexagrams, not a substitute for an actual divination casting.