The 2012 Honda Civic’s gas tank capacity is 13.2 gallons (50 liters).
In the 2012 lineup, both the sedan and coupe share this tank size, and the capacity does not vary by trim. Real-world range depends on fuel economy, driving conditions, and transmission; most models deliver around 30–31 mpg combined under EPA estimates, which translates to roughly 380–410 miles on a full tank.
Tank capacity across the 2012 Civic lineup
The official specification lists a 13.2‑gallon (50 L) fuel tank for 2012 Honda Civic sedans and coupes, regardless of whether the car uses a manual or automatic transmission. This makes it a consistent measure across the model year.
Estimated driving range from a full tank
Using a typical combined fuel economy of about 31 mpg, a full 13.2‑gallon tank yields roughly 409 miles of driving. Real-world figures vary with highway versus city driving, tire pressure, load, and maintenance.
Notes for owners
For precise figures for your specific vehicle, consult the owner’s manual or the Honda factory specifications for your trim and transmission. Fueling practices, temperature, and fuel type can also affect range and tank measurement accuracy.
Summary
The 2012 Honda Civic is equipped with a 13.2‑gallon (50‑liter) fuel tank, shared across sedan and coupe variants. With EPA‑estimated combined fuel economy around 31 mpg, drivers can expect roughly 400 miles of range on a full tank under typical conditions, though actual range will vary.