Member ages
Kep1er Member Ages and Birthdays
Kep1er member ages and birthdays ranked oldest to youngest, from Yujin at age 29 to Yeseo at age 20.
Oldest to youngest
| Rank | Member | Age | Birthday | Position |
|---|---|---|---|---|
| #1 |  YujinMember | 29 | Aug 12, 1996 | Leader, Lead Vocalist |
| #2 |  MashiroMember | 26 | Dec 16, 1999 | Lead Vocalist, Sub-Rapper |
| #3 |  XiaotingMember | 26 | May 12, 2000 | Main Dancer, Vocalist |
| #4 |  ChaehyunMember | 24 | Apr 26, 2002 | Main Vocalist |
| #5 |  DayeonMember | 23 | Mar 2, 2003 | Main Rapper, Lead Dancer |
| #6 |  HikaruMember | 22 | Mar 12, 2004 | Lead Rapper, Sub-Vocalist |
| #7 |  Huening BahiyyihMember | 21 | Jul 27, 2004 | Sub-Vocalist, Visual |
| #8 |  YoungeunMember | 21 | Dec 27, 2004 | Main Dancer, Sub-Vocalist |
| #9 |  YeseoMember | 20 | Aug 22, 2005 | Lead Dancer, Sub-Vocalist |