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Kia K4 Gas Tank Size (2025-2026)

Last Updated 2026-09-02

The Kia K4 gas tank size is 12.4 gallons.

The gas tank size of the Kia K4, when combined with its fuel mileage, gives the K4 the following ranges depending on the model year and options:

2026 Kia K4 Gas Tank Size

The 2026 Kia K4 gas tank size is 12.4 gallons.

On a full tank of fuel, the 2026 Kia K4 has the following ranges depending on the trim level:

2026 Kia K4 Gas Tank Size (Imp.)
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (miles)
EX Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	12.4 gal.	360 city \| 484 hwy \| 409 combined
GT-Line Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	12.4 gal.	360 city \| 484 hwy \| 409 combined
GT-Line Sedan	1.6L \| Turbo \| 4 Cyl. \| 8 Spd Auto w/OD \| FWD	12.4 gal.	322 city \| 446 hwy \| 360 combined
Hatchback EX Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	12.4 gal.
Hatchback GT-Line Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	12.4 gal.
Hatchback GT-Line Sedan	1.6L \| Turbo \| 4 Cyl. \| 8 Spd Auto w/OD \| FWD	12.4 gal.

2026 Kia K4 Gas Tank Size (Imp.) Continued
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (miles)
LX Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	12.4 gal.	372 city \| 496 hwy \| 422 combined
LXS Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	12.4 gal.	360 city \| 484 hwy \| 409 combined

2026 Kia K4 Gas Tank Size (Metric)
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (km)
EX Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	46.9 liters	579 city \| 779 hwy \| 658 combined
GT-Line Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	46.9 liters	579 city \| 779 hwy \| 658 combined
GT-Line Sedan	1.6L \| Turbo \| 4 Cyl. \| 8 Spd Auto w/OD \| FWD	46.9 liters	518 city \| 718 hwy \| 579 combined
Hatchback EX Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	46.9 liters
Hatchback GT-Line Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	46.9 liters
Hatchback GT-Line Sedan	1.6L \| Turbo \| 4 Cyl. \| 8 Spd Auto w/OD \| FWD	46.9 liters

2026 Kia K4 Gas Tank Size (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (km)
LX Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	46.9 liters	599 city \| 798 hwy \| 679 combined
LXS Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	46.9 liters	579 city \| 779 hwy \| 658 combined

The 2025 Kia K4 gas tank size is 12.4 gallons.

On a full tank of fuel, the 2025 Kia K4 has the following ranges depending on the trim level:

2025 Kia K4 Gas Tank Size (Imp.)
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (miles)
EX Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	12.4 gal.	360 city \| 484 hwy \| 422 combined
GT-Line Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	12.4 gal.	360 city \| 484 hwy \| 422 combined
GT-Line Sedan	1.6L \| Turbo \| 4 Cyl. \| 8 Spd Auto w/OD \| FWD	12.4 gal.
LX Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	12.4 gal.	372 city \| 496 hwy \| 434 combined
LXS Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	12.4 gal.	360 city \| 484 hwy \| 422 combined

2025 Kia K4 Gas Tank Size (Metric)
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (km)
EX Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	46.9 liters	579 city \| 779 hwy \| 679 combined
GT-Line Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	46.9 liters	579 city \| 779 hwy \| 679 combined
GT-Line Sedan	1.6L \| Turbo \| 4 Cyl. \| 8 Spd Auto w/OD \| FWD	46.9 liters
LX Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	46.9 liters	599 city \| 798 hwy \| 698 combined
LXS Sedan	2.0L \| 4 Cyl. \| 1 Spd CVT w/OD \| FWD	46.9 liters	579 city \| 779 hwy \| 679 combined