As per Quicken Loans, a car’s gas tank holds 12 gallons on average. The smallest tanks are roughly 9 gallons, and larger cars can carry up to 16 gallons. On manufacturer websites and in owner’s manuals, specific fuel-tank sizes are frequently stated.
In 2011, the Toyota Prius had an 11.9-gallon tank, while the Honda Accord and Toyota Camry had 18.5-gallon tanks. Depending on usage and mileage travelled, larger gas tanks don’t need to be filled as frequently.
Comparing vehicle tank sizes is possible on car review websites like Edmunds.com and Cars.com. In contrast to electric vehicles, which lack gasoline tanks, larger vehicles, including SUVs and minivans, have larger fuel tanks.