October 19, 2021 Karina Brennan analysis gallons many prius October 19, 2021 Read How Many Gallons In A Prius - Updated Read how many gallons in a prius. So for 8 kWh you can go around 22 miles using the US. After 1011 tanks or 100 gallons youll still be 1 gallon off or 1 off. …