Toyota Prius Prime Fuel Economy (MPG)

Name: Toyota Prius Prime MPG & Fuel Economy
Creator: AutoSpecData
License: https://creativecommons.org/licenses/by/4.0/

What is the real-world gas mileage of a 2024 Toyota Prius Prime?

The 2024 Toyota Prius Prime gets up to 54 MPG combined (55 city / 53 highway) in EPA testing.

Latest model year (2024):

The Toyota Prius Prime gets up to 52 MPG combined (53 city / 51 highway) in the Auto (variable gear ratios), 4 cyl, 2.0 L trim.

Verifiedfueleconomy.gov · Verified August 9, 2026

Overview MPG Engine Specs Fuel Cost Transmission Drivetrain Vehicle Class Maintenance Dimensions Curb Weight Safety EV Range

Toyota Prius Prime MPG — All Years

Year	Trim	Engine	Fuel	City (MPG)	Hwy (MPG)	Combined (MPG)
2024Config 1 of 2	Auto (variable gear ratios), 4 cyl, 2.0 L	4 2.0L	Regular Gasoline	50	47	48
2024Config 2 of 2	Auto (variable gear ratios), 4 cyl, 2.0 L	4 2.0L	Regular Gasoline	53	51	52
2023Config 1 of 2	Auto (variable gear ratios), 4 cyl, 2.0 L	4 2.0L	Regular Gasoline	53	51	52
2023Config 2 of 2	Auto (variable gear ratios), 4 cyl, 2.0 L	4 2.0L	Regular Gasoline	50	47	48
2022	Auto (variable gear ratios), 4 cyl, 1.8 L	4 1.8L	Regular Gasoline	55	53	54
2021	Auto (variable gear ratios), 4 cyl, 1.8 L	4 1.8L	Regular Gasoline	55	53	54
2020	Auto (variable gear ratios), 4 cyl, 1.8 L	4 1.8L	Regular Gasoline	55	53	54
2019	Auto (variable gear ratios), 4 cyl, 1.8 L	4 1.8L	Regular Gasoline	55	53	54
2018	Auto (variable gear ratios), 4 cyl, 1.8 L	4 1.8L	Regular Gasoline	55	53	54
2017	Auto (variable gear ratios), 4 cyl, 1.8 L	4 1.8L	Regular Gasoline	55	53	54

Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.

Toyota Prius Prime data analysis

How Toyota Prius Prime combined fuel economy varies

Across 10 configurations recorded for the 2017 through 2024 Toyota Prius Prime, combined fuel economy runs from 48 MPG to 54 MPG. The strongest figure belongs to the 2017 Toyota Prius Prime (Auto (variable gear ratios), 4 cyl, 1.8 L) at 54 MPG, and the weakest to the 2024 car (Auto (variable gear ratios), 4 cyl, 2.0 L) at 48 MPG — a spread of 13%. The narrow spread means any year of the Toyota Prius Prime in this table behaves much like the others, so you can shop on price, condition and mileage rather than chasing a particular model year.

What changed for 2024

Average combined fuel economy for the 2024 Toyota Prius Prime is 50 MPG, against 50 MPG for the 2023 car — it held flat. A carry-over year like this usually means no powertrain or structural change, so an older example is the cheaper way into the same specification.

How to read this Toyota Prius Prime data

This page lists every 2017 through 2024 Toyota Prius Prime record we hold for this measurement — 10 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.

Configurations behind these Toyota Prius Prime numbers

The 2017 through 2024 Toyota Prius Prime entries here cover the variants Auto (variable gear ratios), 4 cyl, 2.0 L and Auto (variable gear ratios), 4 cyl, 1.8 L. 2024 is the busiest model year in the record with 2 separate measured configurations, which is why a single quoted combined fuel economy figure for that year is rarely the one that matches the car in front of you. Match the row to the exact drivetrain, body style and engine on the window sticker or VIN before relying on the number, and use the comparison links below to see how those same configurations line up against rival models.

Where these Toyota Prius Prime figures come from

Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The Toyota Prius Prime record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.

Official Factory Specs vs. AutoSpecData Expert Benchmarks

The EPA highway loop never holds interstate speed. Here is what the same engine does when you sit on the cruise control.

Cruise speed	EPA highway spec	AutoSpecData adjusted MPG	Fuel you lose
60 mph	53 MPG	53 MPG	0%
65 mph	53 MPG	49.4 MPG	7%
70 mph	53 MPG	46 MPG	13%
75 mph	53 MPG	42.9 MPG	19%
80 mph	53 MPG	39.9 MPG	25%

Our Real-World Speed MPG Adjuster re-scales the Toyota Prius Prime EPA highway result with a quadratic drag term (mpg = hwy ÷ (1 + k·(v² − 60²)/60²), k = 0.55 for trucks, SUVs and vans, 0.42 for cars). Wind, roof racks, and a heavy right foot make it worse, never better.

Frequently Asked Questions About Prius Prime MPG

What is the MPG of the Toyota Prius Prime?

The Toyota Prius Prime gets up to 54 MPG combined (55 city / 53 highway) in the 2024 model year. Fuel economy varies by engine and trim — see the full table above for details.

Which Toyota Prius Prime trim has the best fuel economy?

The Auto (variable gear ratios), 4 cyl, 1.8 L trim offers the best combined fuel economy at 54 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.