You are 40 years old if you were born on February 18, 1984.
You are 40 years 2 months, 1 week, and 1 day old or 482 months old or 2,096 weeks old or 14,678 days old or 352,272 hours old or 21,136,320 minutes old or 1,268,179,200 seconds old You were born on a Saturday.