BirthDatabase.com is a free database of birth dates. Since the database originates from government records, the website suggests first searching by the formal first name and then using the person's nickname if the first search isn't successful.
BirthDatabase.com's database contains 120 million names and birth dates. Search results include every person with the first and last name entered, plus their home city, state and Zip code.The website cautions that the home information may not be current. To further differentiate among people with the same name, the website search results display the middle initial.
Other sites such as DOBsearch.com and Peoplesearch3.com also search government records for birth dates; however, there is a charge for those records which includes not only birth dates, but also phone numbers, full current address, employment status and other information available through government sources.