You are 43 years old if you were born on September 18, 1980.
You are 43 years 7 months, 1 week, and 1 day old or 523 months old or 2,275 weeks old or 15,926 days old or 382,224 hours old or 22,933,440 minutes old or 1,376,006,400 seconds old You were born on a Thursday.