How Many Miles Per Gallon does a Hummer Get?

A 2009 Hummer with 239hp and a standard 3.7-liter engine will average around 14-mpg in the city and 18-mpg on the highway.A Hummer H-3 will get you between 20-30mpg. However, the average Hummer will get you 13-14 mpg in the city and 16-18 mpg on the highway. You will want a light foot driving one of these around town. For more information, visit