The BMW M440i does 28.3 mpg combined (25.3 city, 33 highway), which works out to about $1,357 a year in fuel at $3.20 a gallon and 12,000 miles. Engine choice matters more than you'd think: 3L 4-cyl Hybrid does 30 mpg while 3L 6-cyl Hybrid does 28 — a difference of $91 a year. Against other Hybrid cars it sits below the average of 29.8 mpg.
Every BMW M440i engine, compared
Gas mileage on the BMW M440i ranges from 30 down to 28 depending on which engine sits under the bonnet — a spread of $91 a year across 2 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 |
|---|---|---|---|---|
| 3L 4-cyl Hybrid | 27 / 34 | 2025–2025 | $1,280 | |
| 3L 6-cyl Hybrid | 25 / 32.8 | 2021–2027 | $1,371 |
What that actually costs
The BMW M440i burns a gallon every 28.3 miles, so 12,000 miles takes about 424 gallons a year. At $3.20 that is what the table below adds up to.
| Measure | Value |
|---|---|
| Cost per mile | $0.113 |
| Fuel per year | $1,357 |
| Fuel over five years | $6,785 |
| Against other Hybrid cars | +$68 a year |
| EPA's own estimate | $2,721 a year |
City or highway — who is this car for
The BMW M440i gives up 7.7 mpg the moment you leave the motorway — 33 out there against 25.3 in town, a 30% drop worth $354 a year. A wide gap punishes stop-and-start traffic; a narrow one means the car doesn't care where you drive it.
| Measure | Value | Reading |
|---|---|---|
| City | 25.3 mpg | $1,518 a year if you only drive in town |
| Highway | 33 mpg | $1,164 a year if you mostly commute |
| Gap | +7.7 mpg (30%) | Wide — this car dislikes traffic |
How the M440i changed over the years
The M440i peaked in 2027 at 30 mpg (27 city, 34 highway) and was at its thirstiest in 2021 at 26 — 4 mpg apart, or $197 a year in fuel between buying one year and the other. The 2027 car does 30. 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 |
|---|---|---|---|---|
| 2027 | 27 / 34 | 1 | $1,280 | |
| 2026 | 27 / 34 | 1 | $1,280 | |
| 2025 | 27 / 34 | 1 | $1,280 | |
| 2024 | 24 / 32 | 1 | $1,422 | |
| 2023 | 24 / 32 | 1 | $1,422 | |
| 2022 | 25 / 34 | 1 | $1,371 | |
| 2021 | 23 / 31 | 1 | $1,477 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 7 EPA ratings of the BMW M440i — 2 engines across 2021–2027. 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 $2,721. Full method.
Frequently asked questions
What mpg does the BMW M440i get?
28.3 mpg combined on average — 25.3 in the city and 33 on the highway, per EPA ratings across 2021–2027.
How much does a BMW M440i cost in fuel per year?
About $1,357 at 12,000 miles and $3.20 a gallon — roughly $6,785 over five years, or 0.113 dollars a mile.
Which M440i engine is the most economical?
The 3L 4-cyl Hybrid at 30 mpg, against 28 for the 3L 6-cyl Hybrid — a difference of about $91 a year.
Is the M440i good on fuel compared with similar cars?
Against other Hybrid cars it sits below the average of 29.8 mpg, computed across 1162 ratings.
Are these real-world M440i figures?
No — they are EPA laboratory ratings, the same ones printed on the window sticker, and EPA's own annual fuel estimate for the BMW M440i is $2,721 against the $1,357 we compute at 12,000 miles. Expect a little worse in practice: the spread between the 30 and 26 mpg versions of this car is smaller than the spread between two drivers of the same one.
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