How big is the gas tank on a 2012 Ford Fiesta?
The gas tank on a 2012 Ford Fiesta holds 12.4 gallons (47 liters).
Official capacity and what it covers
Ford's official specifications for the 2012 Fiesta list a fuel-tank capacity of 12.4 gallons (47 liters). This applies to the common hatchback and sedan configurations that year and is the amount the tank is designed to hold when full.
Fuel economy and driving range
Fuel efficiency for the 2012 Fiesta varies by trim and transmission. Typical combined fuel economy sits in the low-to-mid 30s miles per gallon, depending on city versus highway driving. With a 12.4-gallon tank, that translates to a theoretical range of roughly 360–450 miles on a full tank, though real-world range will depend on driving style, terrain, and options like air conditioning or frequent rapid acceleration.
Practical notes
Knowing the tank size helps with trip planning and refueling strategy. In city driving, you’ll reach a fill-up sooner, while highway cruising can push the range closer to the upper end of the estimate.
Sources and accuracy
All figures come from Ford’s official specifications and the 2012 Fiesta owner's manual, which list a 12.4-gallon (47-liter) fuel tank as the standard capacity for the year.
Summary
For the 2012 Ford Fiesta, the gas tank capacity is 12.4 gallons (47 liters). This capacity supports a practical driving range that varies with driving conditions, so actual mileage may differ from the theoretical estimate based on EPA ratings.
