The I Ching, or Book of Changes (Yìjīng), is one of the oldest texts of Chinese tradition, a classic of divination and philosophy whose roots reach back nearly three thousand years. At its heart are sixty-four hexagrams, each a stack of six lines — solid (yang) or broken (yin) — built from two of the eight trigrams (bāguà). Each hexagram carries a name and a web of imagery about change, balance and the way situations transform.

This calculator uses a simplified Plum Blossom (Méi Huā) numerology method: it reduces the digits of your birth date to choose an upper and a lower trigram, and a changing line. Those trigrams stack into a primary hexagram; flipping the changing line gives a resulting hexagram, the classic picture of a situation in transformation. The reading is therefore framed by the natural images of its trigrams — heaven, earth, fire, water, thunder, wind, mountain and lake.

The result shows each hexagram’s King Wen number, its Chinese name and pinyin, the Unicode hexagram symbol and the two trigrams that compose it. Its tradition of origin is China. It is offered as a cultural and contemplative reference that invites reflection on change, not as a prediction of the future — for a full reading, consult a complete translation of the Yìjīng.