You are 40 years old if you were born on July 13, 1983.
You are 40 years 9 months, 1 week, and 4 days old or 489 months old or 2,128 weeks old or 14,896 days old or 357,504 hours old or 21,450,240 minutes old or 1,287,014,400 seconds old You were born on a Wednesday.