You are 21 years old if you were born on January 16, 2003.
You are 21 years 2 months, 1 week, and 5 days old or 254 months old or 1,106 weeks old or 7,742 days old or 185,808 hours old or 11,148,480 minutes old or 668,908,800 seconds old You were born on a Thursday.