← all 2021 Toyota Prius Prime trims
2021 Toyota Prius Prime — 1.8L 4-cyl, CVT automatic, FWD
This 2021 Toyota Prius Prime (1.8L 4-cyl, CVT automatic, FWD) takes regular (87-octane) gasoline. REGULAR
54
MPG combined (55 city / 53 hwy)
$1,056
est. fuel cost / year (today’s prices, 15k mi)
78 g/mi
tailpipe CO₂
At today's AAA national average price ($3.80/gal, 2026-07-05) — the EPA's own price/date assumption isn't exposed in the public dataset, so we recompute this from the EPA's MPG figure and a sourced current price.
EPA fuel type: Regular Gas and Electricity · class: Midsize Cars · engine: 1.8L 4-cyl · transmission: CVT automatic · drive: FWD · MPG retrieved 2026-07-24.