50mpg as tested by the EPA - https://www.epa.gov/vehicle-and-fuel-emissions-testing https://www.epa.gov/vehicle-and-fuel-emissions-testing . Real world drivers

50mpg as tested by the EPA - https://www.epa.gov/vehicle-and-fuel-emissions-testing https://www.epa.gov/vehicle-and-fuel-emissions-testing . Real world drivers tend to report similar numbers - http://www.fuelly.com/car/toyota/prius http://www.fuelly.com/car/toyota/prius Obviously, you can stomp on the throttle and get worse numbers if you want. But US MPG ratings are reasonably real-world accurate. (And the US fleet number comes from the same testing from the same group using the same metrics -- so they should be fair to compare)