You are 48 years old if you were born on September 21, 1975.
You are 48 years 6 months, 4 weeks, and 1 day old or 583 months old or 2,534 weeks old or 17,743 days old or 425,832 hours old or 25,549,920 minutes old or 1,532,995,200 seconds old You were born on a Sunday.