You are 20 years old if you were born on June 15, 2003.
You are 20 years 9 months, 1 week, and 6 days old or 249 months old or 1,084 weeks old or 7,592 days old or 182,208 hours old or 10,932,480 minutes old or 655,948,800 seconds old You were born on a Sunday.