Saju Calculator

Enter your solar birth date and time to calculate your Four Pillars (Saju), Day Master, and Five Element balance. Everything is computed in your browser — nothing is sent to a server.

Your birth detailsBirth date (solar calendar)Birth time (optional)

Don't know your birth time? Leave it blank — you'll get a three-pillar reading (year, month, day) without the Hour Pillar.

Advanced: true solar time correction

Birth city (optional)

Saju charts are traditionally based on true solar time at your birthplace, not clock time. Most free calculators skip this step — pick your birth city here if you want the more precise version.

Gender (optional — needed only for the daeun cycle below) Female Male

For entertainment and self-reflection purposes only. Not a substitute for professional advice.