You are 20 years old if you were born on August 18, 2003.
You are 20 years 7 months, 1 week, and 3 days old or 247 months old or 1,075 weeks old or 7,528 days old or 180,672 hours old or 10,840,320 minutes old or 650,419,200 seconds old You were born on a Monday.