Interesting question. Modern (past wwII) carriers do not actually use fuel that would be measurable in gallons. They are powered by passively-safe high-yield and highly-efficient light water reactors. Some nations like Russia have made maybe 1 or 2 ships that use a different kind of reactor, but Light water reactors are favored by practically all navies for being passively safe and can stay operational even if the ship is hit and damaged. Aircraft carriers are difficult to accurately measure in mpg because the fuel economy varies so much by changes in speed and on-ship operations.
The famous Lexington-class carriers during WWII consumed about 395 tons of oil per day. They carried about 5400 long tons (12.096 million pounds) of fuel and had an average range of about 10950 nautical miles (12601 mi). The density of diesel fuel is about .8lb/gal. That equates to a very rough estimate of a 12601-mile range for a 15.12lb fuel supply.
I'd very roughly estimate that a Lexington carrier had a mpg rating of about .0008334 mpg, or 4.4 feet per gallon, which is about 5.1 meters per liter. No wonder it makes sense to use a light-water reactor, right?
aiRcraft caRRier
Only there's no one on the aircraft carrier.
The USS Eisenhower carrier is the most strongest aircraft carrier in the World.
Carrier fighter vs carrier fighter. Aircraft carrier duels. Carrier planes (naval aircraft) have folding wings/or wing-tips for shipboard operations.
Japanese aircraft carrier Kaga was created on 1929-11-30.
Vikrant class aircraft carrier was created in 2015.
There is a flight deck on an aircraft carrier but, it is not an aircraft carrier as there are many other ships that have flight decks on them. The amphibious assault ship is a good example.
French aircraft carrier Béarn was created in 1927-05.
Soviet aircraft carrier Novorossiysk ended in 1993-06.
The George Bush Aircraft Carrier can hold 150 airplanes.
Japanese aircraft carrier Taihō was created on 1944-03-07.
Japanese aircraft carrier Shinano was created on 1944-11-19.