You are 25 years old if you were born on December 18, 1998.
You are 25 years 4 months, 1 week, and 1 day old or 304 months old or 1,323 weeks old or 9,261 days old or 222,264 hours old or 13,335,840 minutes old or 800,150,400 seconds old You were born on a Friday.