http://www-users.med.cornell.edu/~spon/picu/calc/agecalc.htm

http://www.mathcats.com/explore/age/calculator.html

http://www.mathcats.com/explore/agecalculator.html

http://www.timeanddate.com/date/birthday.html

http://easycalculation.com/date-day/age-calculator.php

http://www.calculator.net/age-calculator.html?today=08%2F15%2F1984&ageat=05%2F04%2F2013&x=72&y=9

http://easycalculation.com/date-day/age-calculator.php