You are 20 years old if you were born on March 13, 2004.
You are 20 years 1 month, 1 week, and 6 days old or 241 months old or 1,049 weeks old or 7,349 days old or 176,376 hours old or 10,582,560 minutes old or 634,953,600 seconds old You were born on a Saturday.