How much gas does a 2003 Hyundai Santa Fe?

The fuel tank capacity of a 2003 Hyundai Santa Fe is approximately 18.5 gallons. The vehicle typically averages around 18 to 22 miles per gallon, depending on driving conditions and maintenance. Therefore, the total range on a full tank can be roughly between 333 to 407 miles. Actual mileage may vary based on driving habits and vehicle condition.