To figure out how much you over paid on your gasoline purchase enter your commuting info, examples shown below:

Annual Miles:  I need help calculating

Todays gas price: $ / gallon

Average Mileage (miles/gallon):  Find yours here

Choose your state  Alabama Arizona Arkansas California Colorado Delaware D.C. Florida Georgia Idaho Kansas Kentucky Louisiana Maryland Mississippi Missouri Nevada New Jersey New Mexico New York North Carolina Oklahoma Oregon Pennsylvania South Carolina Tennessee Texas Utah Virginia State not listed?