- Newest year: 2027
- Gas
- Midsize cars
- Partial model year
2025-2027 Kia K4 MPG & Fuel Cost
3 model years · 28–34 MPG combined
15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 7 of 10 midsize car configurations, MY2027. Ranked against all rated configurations, not sales-weighted.
2025-2027 Kia K4 at a glance
The 2025-2027 Kia K4 covers 3 model years in the EPA database (13 configurations in all), rated 28–34 MPG combined. The newest model year, 2027, costs about $1,980 a year to fuel for its most efficient version, the without DMS 2.0L 4-cyl FWD (33 MPG), at regular gasoline $4.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2026 and 2027. The best combined rating in the generation, 34 MPG, was reached in 2025.
Model year 2027 is still being filled in by EPA (5 configurations listed so far), so rows may be added.
2025-2027 Kia K4 by model year
| Model year | Powertrains | Combined | $/yr | EPA ratings |
|---|---|---|---|---|
| 2027 (partial) | Gas | 28–33 MPG | $1,980–$2,310 | Ratings changed |
| 2026 | Gas | 28–33 MPG | $1,980–$2,310 | Ratings changed |
| 2025 | Gas | 29–34 MPG | $1,940–$2,220 | First year |
What the 2027 without DMS 2.0L 4-cyl FWD costs to drive
Per month
$165
$1,980 a year ÷ 12
Per 25 miles
$3.30
Per 100 miles
$13.20
Five years
$9,900
5 × the yearly cost, prices held at today's level
vs the midsize car median
$250less a year
Class median $2,230 a year, MY2027
Based on 15,000 miles a year and regular gasoline $4.36/gal (U.S. average, Sep 2026).
2027 Kia K4 MPG
Model year 2027 is still being filled in by EPA (5 configurations listed so far), so rows may be added.
Versus 2026: The most efficient configuration stays at 33 MPG. Its annual cost stays at $1,980.
Gas configurations (5)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| without DMS (Most efficient) | 2.0L 4-cyl | FWD | 29 | 39 | 33 | $1,980 |
| 4DR with DMS | 2.0L 4-cyl | FWD | 29 | 39 | 33 | $1,990 |
| Hatchback 2.0L 4-cyl | 2.0L 4-cyl | FWD | 28 | 34 | 30 | $2,150 |
| K4 | 1.6L 4-cyl turbo | FWD | 26 | 33 | 28 | $2,310 |
| Hatchback 1.6L 4-cyl turbo | 1.6L 4-cyl turbo | FWD | 26 | 33 | 28 | $2,310 |
2026 Kia K4 MPG
28–33 MPG · $1,980–$2,310/yr
Versus 2025: The most efficient configuration moves from 34 to 33 MPG, down 1. Its annual cost goes from $1,940 to $1,980, $40 more.
Gas configurations (5)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| without DMS (Most efficient) | 2.0L 4-cyl | FWD | 29 | 39 | 33 | $1,980 |
| 4DR w/ DMS | 2.0L 4-cyl | FWD | 29 | 39 | 33 | $1,990 |
| Hatchback 2.0L 4-cyl | 2.0L 4-cyl | FWD | 28 | 34 | 30 | $2,150 |
| K4 | 1.6L 4-cyl turbo | FWD | 26 | 33 | 28 | $2,310 |
| Hatchback 1.6L 4-cyl turbo | 1.6L 4-cyl turbo | FWD | 26 | 33 | 28 | $2,310 |
2025 Kia K4 MPG
29–34 MPG · $1,940–$2,220/yr
Gas configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| K4 2.0L 4-cyl FWD Automatic (AV-S1) (Most efficient) | 2.0L 4-cyl | FWD | 30 | 40 | 34 | $1,940 |
| K4 2.0L 4-cyl FWD Automatic (AV-S1) | 2.0L 4-cyl | FWD | 29 | 39 | 33 | $2,010 |
| K4 1.6L 4-cyl turbo | 1.6L 4-cyl turbo | FWD | 26 | 36 | 29 | $2,220 |
Fuel cost by state
Yearly cost of the without DMS 2.0L 4-cyl FWD: $2,690 in California and $1,720 in Texas, a $970 difference.
- California $2,690
- Washington $2,490
- New York $1,980
- Florida $1,870
- Texas $1,720
Similar cars
Closest combined MPG among MY2027 midsize car models.
Generations
- 2025-2027* (2025)
Frequently asked questions
What gas mileage does the 2025-2027 Kia K4 get?
EPA rates the 2025-2027 Kia K4 at 28–34 MPG combined across 13 configurations and 3 model years. The most efficient version, the 2025 K4 2.0L 4-cyl FWD, is rated 34 MPG (30 city, 40 highway).
Which years had the best MPG in the 2025-2027 Kia K4?
The K4 2.0L 4-cyl FWD reached the generation's best combined rating, 34 MPG, in 2025. The lowest top rating, 33 MPG, was in 2026 and 2027.
Did EPA ratings change during the 2025-2027 Kia K4?
Yes. Ratings changed in 2026 and 2027.
How much does it cost to fuel a 2027 Kia K4 per year?
Driving 15,000 miles a year at regular gasoline $4.36/gal (U.S. average, Sep 2026), the without DMS 2.0L 4-cyl FWD costs about $1,980 a year. Across all 5 configurations the cost runs $1,980–$2,310 a year. That is a $330 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2027 Kia K4 100 miles?
About $13.20 per 100 miles for the without DMS 2.0L 4-cyl FWD at regular gasoline $4.36/gal (U.S. average, Sep 2026), and between $13.20 and $15.40 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2027 Kia K4 more efficient in the city or on the highway?
The without DMS 2.0L 4-cyl FWD is rated 29 city and 39 highway MPG, so it is more efficient on the highway, by 10 MPG.
How does the 2027 Kia K4 compare with other midsize car configurations?
The without DMS 2.0L 4-cyl FWD costs about $1,980 a year to fuel, $250 less than the class median of $2,230, and less than 7 of 10 midsize car configurations. The comparison covers all 26 rated midsize car configurations for MY2027, not weighted by sales.
Is the 2027 Kia K4 different from the 2026 model?
The most efficient configuration stays at 33 MPG. Its annual cost stays at $1,980. EPA lists 5 configurations for 2027 against 5 configurations for 2026. See the 2026 Kia K4 for that year.