The 2024 Kia K5 gets 27 to 31 miles per gallon combined, depending on the version. The best is the 2024 K5 (4-cyl 1.6 L) at 31 mpg.
The EPA figures for 2024 are the same as for 2023; the safety records below are for 2024.
In the Large Cars class for 2024, the K5 ranks 5th of 16 for combined mileage (31 mpg), 4th of 16 for yearly fuel cost ($2,000 for its cheapest version, cheapest first) and 5th of 16 for tailpipe CO2 (293 grams per mile for its lowest version, lowest first). The middle model of the class gets 24.5 mpg, costs $3,150 a year and puts out 362.5 grams per mile.
Across all 262 2024 models in the file that burn fuel, the middle best-version figure is 25 mpg and the highest is 57 mpg (Toyota Prius). Of the 261 other models, 38 get more miles per gallon than the 2024 K5's best version, 10 other models get the same and 213 get less. The 2024 K5's cheapest version costs $2,000 a year to fuel by the agency's figure; of the 255 other models with a cost figure, 32 cost less, 10 the same and 213 more.
Open the best-mileage list of this class for 2024. Cost and CO2 in the table are each model's lowest figure over its versions; plug-in hybrid and fuel-cell versions have no fuel cost and are left out of the cost column.
| Place | Model | Best version | mpg | Fuel a year, cheapest version | CO2 g/mi, lowest version |
|---|---|---|---|---|---|
| 2 | 2024 Hyundai Sonata | 2024 Sonata Hybrid | 47 | $1,300 | 188 |
| 3 | 2024 Honda Civic | 2024 Civic 5Dr (4-cyl 1.5 L, Automatic (variable gear ratios), Regular Gasoline) | 35 | $1,800 | 258 |
| 4 | 2024 Acura Integra | 2024 Integra (4-cyl 1.5 L) | 33 | $2,350 | 269 |
| 5 | 2024 Kia K5This car | 2024 K5 (4-cyl 1.6 L) | 31 | $2,000 | 293 |
| 6 | 2024 BMW 7 Series | 2024 740i Sedan | 28 | $2,750 | 317 |
| 7 | 2024 Genesis G80 | 2024 G80 AWD (4-cyl 2.5 L) | 25 | $3,100 | 361 |
| 7 | 2024 Volkswagen Arteon | 2024 Arteon 4motion | 25 | $3,100 | 361 |
Pick a 2024 version, then set your miles and fuel price. Fuel price as of 2026-11-14, U.S. Department of Energy / EPA. The price box starts at the dated price of the fuel the picked version burns (regular, midgrade or premium gasoline, diesel, E85 or electricity) and sets the price of that fuel. Miles are limited to 1,000 to 60,000 a year and the price to $0.01 to $20.00; a value outside that is worked out at the nearest limit.
2024 K5 (4-cyl 1.6 L), 4-cyl 1.6 L: 27 mpg city, 37 highway, 31 combined. The agency's own estimate for the 2024 K5 version is $2,000 a year (15,000 miles, the agency's fuel prices).
The 3 nearest rivals in the Large Cars class for 2024, picked by closest combined mileage; only versions with a fuel-cost figure are listed. Same miles as on the left. The price box on the left is the price of the fuel of the version you picked: a rival that burns the same fuel uses that price, a rival that burns another fuel keeps the dated price of its own fuel. The 5-year line is 5 times the yearly gap.
The K5 costs $342 less to fuel each year.
Over 5 years the K5 costs $1,710 less to fuel than the Integra (5 times the yearly difference, at these miles and these prices).
Dollar gaps use each car's best-mileage version.
| Rival in 2024 | Best version | Combined | Fuel a year, agency (15,000 miles) | Against the K5 (mileage) | Agency yearly fuel cost against the K5 | Side by side |
|---|---|---|---|---|---|---|
| 2024 Acura Integra | 2024 Integra (4-cyl 1.5 L) | 33 mpg | $2,350 | 2 higher | $350 more a year | - |
| 2024 BMW 7 Series | 2024 740i Sedan | 28 mpg | $2,750 | 3 lower | $750 more a year | - |
| 2024 Honda Civic | 2024 Civic 5Dr (4-cyl 1.5 L, Automatic (variable gear ratios), Regular Gasoline) | 35 mpg | $1,800 | 4 higher | $200 less a year | Compare |
EPA test figures for 2024; the last column is the yearly fuel cost against the cheapest version.
| Version | Engine | Gearbox | Drive | City | Highway | Combined | Fuel a year | CO2 g/mi | Fuel vs cheapest |
|---|---|---|---|---|---|---|---|---|---|
| 2024 K5 (4-cyl 1.6 L) | 4-cyl 1.6 L | Automatic (S8) | Front-wheel | 27 | 37 | 31 | $2,000 | 293 | cheapest |
| 2024 K5 AWD | 4-cyl 1.6 L | Automatic (S8) | All-wheel | 25 | 33 | 28 | $2,200 | 316 | +$200 |
| 2024 K5 (4-cyl 2.5 L) | 4-cyl 2.5 L | Automatic (AM-S8) | Front-wheel | 24 | 32 | 27 | $2,300 | 332 | +$300 |
Enter the price difference you were quoted for the 2024 K5; this page has no prices. Miles come from the calculator. The fuel price box there sets the price of the fuel of the version picked there; a version here that burns another fuel keeps the dated price of its own fuel. Versions with no fuel-cost figure are not listed.
Type the price difference you were quoted to see the payback.
Tailpipe CO2: the 2024 K5 (4-cyl 1.6 L) puts out 293 grams per mile; across the 3 tested versions the figure runs from 293 to 332.
EPA scores (1 to 10, 10 best) for the 2024 K5 (4-cyl 1.6 L): fuel economy score 6 (5 to 6 across versions), greenhouse gas score 6 (5 to 6 across versions).
Best combined figure of the K5 gas version each model year since 2016, set against the 2024 model.
| Model year | Best gas version | Versions tested | Against 2024 | |
|---|---|---|---|---|
| 2021 | 32 mpg | 4 | 1 mpg higher than 2024 | |
| 2022 | 32 mpg | 4 | 1 mpg higher than 2024 | |
| 2023 | 31 mpg | 3 | same as 2024 | |
| 2024This page | 31 mpg | 3 | this page | |
| 2025 | 30 mpg | 4 | 1 mpg lower than 2024 | |
| 2026 | 30 mpg | 4 | 1 mpg lower than 2024 |
Compared with the 2023 model: 3 versions were tested then and 3 now; the best figure went from 31 to 31 mpg (no change).
The 2025 model has 4 tested versions.
| Version in 2024 | 2024 | 2023 | Change |
|---|---|---|---|
| 2024 K5 (4-cyl 1.6 L), 4-cyl 1.6 L | 31 mpg | 31 mpg | no change |
| 2024 K5 AWD, 4-cyl 1.6 L | 28 mpg | 28 mpg | no change |
| 2024 K5 (4-cyl 2.5 L), 4-cyl 2.5 L | 27 mpg | 27 mpg | no change |
Crash-test stars from the U.S. safety agency's 5-Star Safety Ratings, checked 2026-11-14. 5 is the best.
| Vehicle | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2024 Kia K5 4 DR AWD | 5 of 5 | 4 of 5 | 5 of 5 | 4 of 5 |
| 2024 Kia K5 4 DR FWD | 5 of 5 | 4 of 5 | 5 of 5 | 4 of 5 |
The agency lists 2 variants; all 2 are shown.
The agency's record for the first rated vehicle also lists 32 complaints, 2 recalls, 0 investigations.
32 complaints for the 2024 Kia K5 are on file (checked 2026-11-14). Complaints are reports that owners sent to the safety agency. They are not proven defects, and the counts are not adjusted for how many cars were sold.
| Part named in the reports | Reports | |
|---|---|---|
| Engine | 9 | |
| Electrical System | 7 | |
| Structure | 7 | |
| Unknown Or Other | 7 | |
| Forward Collision Avoidance | 4 |
1 of the 32 reports say the car was in a crash, 0 mention a fire and 1 mentions an injury. One report can name more than one part.
2 recalls are on file for the 2024 Kia K5 at the U.S. safety agency (checked 2026-11-14). A dealer does recall repairs free of charge.
Kia America, Inc. (Kia) is recalling certain 2021-2024 K5 vehicles. A damaged check valve can allow air to enter the fuel tank, causing it to expand and contact hot exhaust components, melting the tank.
Fix: Dealers will replace the check valve. The fuel tank will be inspected for damage and replaced as necessary. All repairs will be performed free of charge.
Kia America, Inc. (Kia) is recalling certain 2023-2025 K5 vehicles. The left and right rear window trim pieces may loosen and detach.
Fix: Dealers will inspect and replace the C-pillar trim assemblies, as necessary, free of charge. Owner notification letters were mailed November 19, 2025.
Other 2024 models of the same agency class, each with its best combined figure. The K5 itself is at 31 mpg.
More Kia models that have a 2024 page here, with the class of each and its best combined figure.
The 2024 K5 (4-cyl 1.6 L) with 31 mpg combined (27 city, 37 highway).
The 2024 Kia K5 costs between $2,000 and $2,300 to fuel by the agency's estimate, which assumes 15,000 miles a year. The cheapest is the 2024 K5 (4-cyl 1.6 L) at $2,000; the dearest is the 2024 K5 (4-cyl 2.5 L) at $2,300. Use the calculator above for your own miles and fuel price.
2024 K5 AWD: 28 mpg combined (25 city, 33 highway).
The 2024 Kia K5 is 5th of 16 for combined mileage. The top of the class is the 2024 Honda Accord at 48 mpg, and the middle figure for the class is 24.5 mpg. In the list, the next one ahead is the 2024 Acura Integra at 33 mpg and the next one behind is the 2024 BMW 7 Series at 28 mpg.
The 2023 model had 3 tested versions and the 2024 model has 3. The best figure went from 31 to 31 mpg (no change).
In the agency's 5-Star Safety Ratings (checked 2026-11-14; 5 is the best), the stars are 2024 Kia K5 4 DR AWD: overall 5 of 5, front 4, side 5, rollover 4; 2024 Kia K5 4 DR FWD: overall 5 of 5, front 4, side 5, rollover 4. The agency lists 2 variants; all 2 are shown.
32 complaints for the 2024 Kia K5 are on file at the safety agency (checked 2026-11-14); the part named most often is Engine (9 reports). Complaints are reports owners sent in, not proven defects.
The agency's database lists 2 recalls for the 2024 Kia K5 (checked 2026-11-14). They are listed above with the repair the maker offers.
For the 2024 Kia K5: EPA file 2026-11-04; fuel price 2026-11-14; crash tests 2026-11-14; complaints 2026-11-14; recalls 2026-11-14. Not covered: purchase price, towing, reliability, repair and insurance costs.
Mileage and fuel cost for the 2024 Kia K5: U.S. Environmental Protection Agency, fueleconomy.gov vehicle file (file dated 2026-11-04). Recalls for the 2024 Kia K5: U.S. National Highway Traffic Safety Administration (checked 2026-11-14). Crash-test ratings for the 2024 Kia K5: NHTSA 5-Star Safety Ratings (checked 2026-11-14). Complaints for the 2024 Kia K5: NHTSA (checked 2026-11-14). Fuel prices: U.S. Department of Energy / EPA (2026-11-14). Your own mileage depends on how and where you drive. Where our numbers come from.