Member ages
ONF Member Ages and Birthdays
ONF member ages and birthdays ranked oldest to youngest, from Hyojin at age 32 to Laun at age 27.
Oldest to youngest
| Rank | Member | Age | Birthday | Position |
|---|---|---|---|---|
| #1 |  HyojinMember | 32 | Apr 22, 1994 | Leader, Main Vocalist |
| #2 |  E-TionMember | 31 | Dec 24, 1994 | Lead Vocalist, Leader |
| #3 |  SeungjunMember | 31 | Jan 13, 1995 | Leader, Lead Dancer, Sub Vocalist |
| #4 |  WyattMember | 31 | Jan 23, 1995 | Main Rapper, Lead Dancer, Sub Vocalist |
| #5 |  MinkyunMember | 30 | Nov 16, 1995 | Lead Vocalist, Sub Rapper |
| #6 |  YutoMember | 27 | Mar 16, 1999 | Main Dancer, Sub Vocalist, Maknae |
| #7 | LaunFormer member | 27 | Aug 12, 1999 | Member |