Kia K4 Gas Mileage (2025-2026)

The Kia K4 gas mileage is 29 to 35 miles per gallon as specified in our data below, organized by trim, option package, and model year.

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For example, the 2026 Kia K4 GT-Line trim model has a combined gas mileage of 29 miles per gallon, while the 2025 Kia K4 LX has a combined gas mileage of 35 miles per gallon.

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In the city, the K4 gas mileage is 26 to 30 miles per gallon depending on the trim and model year.

On the highway, the K4 gas mileage is 36 to 40 miles per gallon depending on the trim and model year.

Note: The gas mileage shown for hybrid vehicles is the miles per gallon equivalent.

Check out the Gas Mileage specifications for other makes and models.

2026 Kia K4 Gas Mileage

Depending on trim level, the 2026 Kia K4 gas mileage is from 29 to 34 miles per gallon combined.

In the city, the 2026 K4 gas mileage is from 26 to 30 miles per gallon, depending on the trim.

On the highway, the 2026 K4 gas mileage is from 36 to 40 miles per gallon, depending on the trim.

2025 Kia K4 Gas Mileage

Depending on trim level, the 2025 Kia K4 gas mileage is from 34 to 35 miles per gallon combined.

In the city, the 2025 K4 gas mileage is from 29 to 30 miles per gallon, depending on the trim.

On the highway, the 2025 K4 gas mileage is from 39 to 40 miles per gallon, depending on the trim.