How the naming method works

How do Korean names work?

A Korean name is almost always a one-syllable family name followed by a two-syllable given name — 김세라 is the family name Kim (김) plus the given name Se-ra (세라). Given names are written in hangul but usually anchored to hanja, Sino-Korean characters that carry the name's meaning: the same sound can mean very different things depending on which hanja the parents chose.

Traditionally, those hanja are not picked at random. Families consult the child's saju — the Four Pillars calculated from the birth date and time — and favor characters whose elements balance the chart, alongside sound, sibling naming patterns, and character combinations considered auspicious. Our method follows that same practice, step by step below.

1. Saju calculation

Local birth details are interpreted in the selected IANA time zone, including historical daylight-saving rules. The year, month, and day pillars are calculated from documented sexagenary and solar-term rules. The hour pillar is added only when a birth time is provided. You can see these four pillars for your own birth on the free Saju calculator; how to read a Saju chart walks through an example.

2. Element analysis

The four—or, when time is unknown, three—pillars are summarized into a five-element distribution. Complementary elements are treated as one interpretation under the documented method, not as an objective fact or forecast.

3. Given-name connection

The system analyzes the sound of a Latin-alphabet given name, preferring a pronunciation hint when supplied. Meaning continuity is used only when the user provides a meaning; the service does not invent an uncertain etymology.

4. Candidate composition

Candidate syllables and curated, permitted hanja are filtered and ranked for sound, meaning when supplied, saju fit, traditional naming-rule fit, naturalness, and pronounceability. The free result is always the top Sound Match; selected priorities are retained for the full-report ranking.

Important limitations

Saju and Korean naming practice contain multiple schools with different conventions. Unknown birth time reduces the chart to three pillars. Results are for cultural, educational, and entertainment purposes and should be considered an invitation to learn, not a guarantee.