You are 21 years old if you were born on December 15, 2002.
You are 21 years 4 months, 1 week, and 3 days old or 256 months old or 1,114 weeks old or 7,802 days old or 187,248 hours old or 11,234,880 minutes old or 674,092,800 seconds old You were born on a Sunday.