You are 21 years old if you were born on January 1, 2003.
You are 21 years 3 months, 3 weeks, and 4 days old or 255 months old or 1,112 weeks old or 7,786 days old or 186,864 hours old or 11,211,840 minutes old or 672,710,400 seconds old You were born on a Wednesday.