Abstract: A specialty calculator for determining the chronological age of an individual based upon a birth date and a current date is herein disclosed. The device is also capable of performing standard arithmetic calculations such as addition, subtraction, multiplication and division. The device comprises dedicated circuitry, programming, and keys designed to determine the age of an individual based upon their birth date. A battery-maintained present date is stored in memory or may be entered manually to determine the chronological age of the user. The resultant output is provided in the form of years, months, and days on a digital display. The calculating device saves the time required to perform a difficult manual calculation and insures a user a reliable calculation.