The Toyota Prius does 50.4 mpg combined (51.7 city, 48.8 highway), which works out to about $762 a year in fuel at $3.20 a gallon and 12,000 miles. Engine choice matters more than you'd think: 2L 4-cyl Hybrid does 57 mpg while 1.5L 4-cyl Hybrid does 44.3 — a difference of $193 a year. Against other Hybrid cars it sits above the average of 29.8 mpg.
Every Toyota Prius engine, compared
Gas mileage on the Toyota Prius ranges from 57 down to 44.3 depending on which engine sits under the bonnet — a spread of $193 a year across 5 versions of the same car. Picking the right one often saves more fuel than picking a different car altogether. Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 2L 4-cyl Hybrid | 57 / 56 | 2023–2026 | $674 | |
| 1.8L 4-cyl Hybrid | 54.1 / 49.9 | 2010–2022 | $731 | |
| 2L 4-cyl Plug-in hybrid | 53 / 51 | 2025–2025 | $738 | |
| 1.8L 4-cyl Plug-in hybrid | 51 / 49 | 2012–2015 | $768 | |
| 1.5L 4-cyl Hybrid | 46 / 43.7 | 2001–2009 | $867 |
What that actually costs
The Toyota Prius burns a gallon every 50.4 miles, so 12,000 miles takes about 238 gallons a year. At $3.20 that is what the table below adds up to.
| Measure | Value |
|---|---|
| Cost per mile | $0.063 |
| Fuel per year | $762 |
| Fuel over five years | $3,810 |
| Against other Hybrid cars | −$527 a year |
| EPA's own estimate | $1,247 a year |
City or highway — who is this car for
The Toyota Prius is one of the cars that does better in town than out of it — 51.7 in the city against 48.8 on the highway. That is $44 a year in favour of the commuter stuck in traffic, and it usually means a hybrid drivetrain recovering energy every time you brake.
| Measure | Value | Reading |
|---|---|---|
| City | 51.7 mpg | $743 a year if you only drive in town |
| Highway | 48.8 mpg | $787 a year if you mostly commute |
| Gap | -2.9 mpg (-6%) | Reversed — it does better in town than on the open road |
How the Prius changed over the years
The Prius peaked in 2026 at 57 mpg (57 city, 56 highway) and was at its thirstiest in 2003 at 41 — 16 mpg apart, or $263 a year in fuel between buying one year and the other. The 2026 car does 57. Jumps usually mark a new generation or a new engine; dips often mean a heavier body or added all-wheel drive.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2026 | 57 / 56 | 1 | $674 | |
| 2025 | 55 / 53.5 | 2 | $705 | |
| 2024 | 57 / 56 | 1 | $674 | |
| 2023 | 57 / 56 | 1 | $674 | |
| 2022 | 58 / 53 | 1 | $686 | |
| 2021 | 58 / 53 | 1 | $686 | |
| 2020 | 58 / 53 | 1 | $686 | |
| 2019 | 58 / 53 | 1 | $686 | |
| 2018 | 58 / 53 | 1 | $686 | |
| 2017 | 58 / 53 | 1 | $686 | |
| 2016 | 58 / 53 | 1 | $686 | |
| 2015 | 50.5 / 47.5 | 2 | $784 | |
| 2014 | 50 / 47.5 | 2 | $784 | |
| 2013 | 50 / 47.5 | 2 | $784 | |
| 2012 | 50 / 47.5 | 2 | $784 | |
| 2011 | 49 / 46 | 1 | $800 | |
| 2010 | 51 / 48 | 1 | $768 | |
| 2009 | 48 / 45 | 1 | $835 | |
| 2008 | 48 / 45 | 1 | $835 | |
| 2007 | 48 / 45 | 1 | $835 | |
| 2006 | 48 / 45 | 1 | $835 | |
| 2005 | 48 / 45 | 1 | $835 | |
| 2004 | 48 / 45 | 1 | $835 | |
| 2003 | 42 / 41 | 1 | $937 | |
| 2002 | 42 / 41 | 1 | $937 | |
| 2001 | 42 / 41 | 1 | $937 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 31 EPA ratings of the Toyota Prius — 5 engines across 2001–2026. The mileage is EPA's laboratory figure, unchanged; the yearly bill is ours, at 12,000 miles and $3.20 a gallon, against EPA's own estimate of $1,247. Full method.
Frequently asked questions
What mpg does the Toyota Prius get?
50.4 mpg combined on average — 51.7 in the city and 48.8 on the highway, per EPA ratings across 2001–2026.
How much does a Toyota Prius cost in fuel per year?
About $762 at 12,000 miles and $3.20 a gallon — roughly $3,810 over five years, or 0.063 dollars a mile.
Which Prius engine is the most economical?
The 2L 4-cyl Hybrid at 57 mpg, against 44.3 for the 1.5L 4-cyl Hybrid — a difference of about $193 a year.
Is the Prius good on fuel compared with similar cars?
Against other Hybrid cars it sits above the average of 29.8 mpg, computed across 1162 ratings.
Are these real-world Prius figures?
No — they are EPA laboratory ratings, the same ones printed on the window sticker, and EPA's own annual fuel estimate for the Toyota Prius is $1,247 against the $762 we compute at 12,000 miles. Expect a little worse in practice: the spread between the 57 and 41 mpg versions of this car is smaller than the spread between two drivers of the same one.
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