Kia K4 MPG by Year
Here's the official EPA Kia K4 MPG for every model year from 2025 to 2027.
K4 MPG by Year and Version
The EPA has rated 13 configurations of the K4. Pick a year to see each engine and drivetrain.
K4 MPG Over the Years
Each bar shows the range of combined MPG across every K4 configuration the EPA rated that year, from the thirstiest version to the most efficient. Hover or tap a year to see the numbers.
How the K4 Compares
The EPA rated 24 midsize cars for 2026. The best K4 version, at 33 MPG combined, ties for 8th with 1 other model of 24. Combined ratings in the class run from 16 to 57 MPG, with a median of 28.5. Plug-in hybrids and electric models are ranked separately.
| Rank | Model | Combined |
|---|---|---|
| 1 | Toyota Prius | 57 MPG |
| 2 | Hyundai Elantra | 54 MPG |
| 3 | Toyota Camry | 51 MPG |
| 4 | Honda Civic | 49 MPG |
| 5 | Lexus ES | 46 MPG |
| 8 | Kia K4 | 33 MPG |
What Does a K4 Cost to Fuel?
Pick a K4, then enter your gas price and how much you drive. The math uses the EPA city and highway ratings, weighted by how much of your driving happens in each.
K4 MPG Questions
Which K4 year gets the best gas mileage?
The 2025 K4 holds the top EPA rating at 34 MPG combined (30 city, 40 highway). Among 2026 models, the K4 4DR w/ DMS is rated at 33 MPG combined.
Why doesn't my K4 match the EPA numbers?
EPA ratings come from standardized lab tests so every car is measured the same way. Your results depend on speed, climate, idling, cargo, tire pressure and upkeep. The ratings are best for comparing one car against another. To track your own numbers, try the MPG calculator.
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Where These Numbers Come From
Every figure on this page comes from the U.S. EPA fuel economy dataset on fueleconomy.gov, pulled together by Cedrick Reese. The file lists 13 ratings for the Kia K4 from 2025 to 2027. Each row in the table links to the matching EPA vehicle record, so you can check any figure against the source. The page is rebuilt whenever the EPA publishes an updated file, which picks up new model years and any rating corrections. The cost calculator uses the gas price you enter rather than a national average, so the result fits where you live.
Ratings on this page come from the EPA file downloaded on October 1, 2026.
Sources
- Download Fuel Economy Data, fueleconomy.gov, U.S. DOE and EPA
- Factors that affect fuel economy, fueleconomy.gov