The alcohol content of Coors beer varies on the type of Coors style beer you are drinking. For example, Coors original and Coors extra gold are 5.0% in alcohol content while Coors light is only 4.2% in alcohol content.
The alcohol content varies from brand to brand and type of beer. Some states restrict the content. In general a 12 ounce beer will contain about 4% alcohol. That means that most cans of beer contain about half an ounce of alcohol.