Yoonchae is currently 18 years old, based on publicly available profile information.

Quick Scoop

  • Yoonchae (Jeung/Jeong Yoon-chae) was born on December 6, 2007, in Seoul, South Korea.
  • As of early January 2026, that birth date makes her 18 years old under the standard international age system.
  • She is known as the youngest member (maknae) of the global girl group KATSEYE, formed after the reality competition The Debut: Dream Academy.

Why There’s Confusion About Her Age

  • Older forum and fan discussions sometimes mention her as 15, 16, or 17 because they were posted in earlier years and sometimes used the now-abolished Korean age system.
  • Since South Korea moved to the international age standard and time has passed since those posts, the correct present-day answer is that she is 18.

Mini FAQ

  • How old is Yoonchae right now?
    18 years old (international age).
  • When is Yoonchae’s birthday?
    December 6, 2007.
  • Who is she?
    A South Korean singer and performer, best known as KATSEYE’s youngest member after appearing on The Debut: Dream Academy.

Information gathered from public forums or data available on the internet and portrayed here.