Greetings. I've posted a calculator that will show your annual gasoline costs based on your mileage, annual miles driven and the price you expect to pay.
It starts out with national average figures:
"Driving 20,251 miles a year at 22 miles per gallon you burn 921 gallons per year and pay $2,890 for that gasoline." You can then plug in your own figures. You can play with other possibilities. I round off the page with gas-saving tips and gas-shopping sites.