You are 48 years old if you were born on December 21, 1975.
You are 48 years 3 months, 4 weeks, and 1 day old or 580 months old or 2,521 weeks old or 17,652 days old or 423,648 hours old or 25,418,880 minutes old or 1,525,132,800 seconds old You were born on a Sunday.