Kia · 2025–2027 · Gas
Kia K4 MPG by year
The EPA has rated 3 model years of the Kia K4, from 2025 to 2027. The most fuel-efficient year is the 2025, at 34 MPG combined in its best configuration. The 2027 model is 12% more efficient than the median midsize car that year (33 vs. 29.5 MPG).
Combined MPG by model year
- K4, most efficient version
- Range across configurations
- Class median
Shaded band: range across that year's configurations. Class median: same-year models in the same class, rated in MPG. Click a point to open that model year; the table below lists every value.
Every K4 model year
| Year | Type | Best combined | City / Hwy | Class median | Range | Configs | Fuel / yr |
|---|---|---|---|---|---|---|---|
| 2027 | Gas | 33 MPG lowest 28 |
29 / 39 | 29.5 | — | 3 | $1,409 |
| 2026 | Gas | 33 MPG lowest 28 |
29 / 39 | 30 | — | 3 | $1,409 |
| 2025 | Gas | 34 MPG lowest 29 |
30 / 40 | 28 | — | 3 | $1,368 |
Fuel cost uses today's default prices for every year so model years compare like for like. Sort any column.
Compare K4 model years
See how much a newer K4 would save over an older one.
Models similar to the Kia K4
Frequently asked questions
Which Kia K4 year has the best fuel economy?
The 2025 Kia K4, rated up to 34 MPG combined. At 15,000 miles a year with $3.10/gal regular gas, that works out to about $1,368 a year.
Which Kia K4 year has the worst fuel economy?
The 2026 model, whose most efficient version is rated 33 MPG combined (about $1,409 a year to fuel).
What is the fuel economy of the latest Kia K4?
The 2027 Kia K4 is rated up to 33 MPG combined.