Kia Forte vs Lexus UX: Specs Compared

Also searched as Lexus UX vs Kia Forte specs — both orientations show this same side-by-side comparison.

The Lexus UX is the more efficient of the two: it reaches 43 mpg combined versus 35 mpg for the Kia Forte, a 8 mpg advantage and costs about $300 less per year to fuel.

Across 4 measured categories, the Lexus UX leads in 4. Figures are EPA test data, not manufacturer claims.

2015–2024

Kia Forte

Midsize Cars · 60 configurations

35mpg combined (best)
All Kia Forte specs

2019–2026

Lexus UX

Compact Cars · 24 configurations

43mpg combined (best)
All Lexus UX specs

Head-to-head specifications

MetricKia ForteLexus UX
Best combined MPG35 mpg43 mpg ✓
Best city MPG31 mpg45 mpg ✓
Best highway MPG41 mpg41 mpg
Lowest annual fuel costEPA estimate at 15,000 miles per year$1,750$1,450 ✓
Lowest CO2 output256 g/mi204 g/mi ✓
Engines offeredSIDI, 2.0, 1.8SIDI & PFI; Hybrid, SIDI & PFI; Mild Hybrid, SIDI & PFI
TransmissionsAutomatic (AM-S7), Automatic (variable gear ratios), Manual 6-spdAutomatic (AV-S6), Automatic (variable gear ratios), Automatic (AV-S10)
DrivetrainsFront-Wheel DriveAll-Wheel Drive, Front-Wheel Drive
Fuel typesRegularRegular
EPA classMidsize CarsCompact Cars
Years covered2015–20242019–2026
Configurations on record6024

Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.

Kia Forte vs Lexus UX dimensions and size

The Kia Forte is 5.5 inches longer than the Lexus UX on a wheelbase 2.4 inches longer, and 747.4 lbs lighter. Both clear the roughly 200 inches of usable length in a standard single garage bay.

Kia Forte versus Lexus UX exterior dimensions
DimensionKia Forte (2024)Lexus UX (2026)Difference
Length182.7 in177.2 in5.5 in
Width (excl. mirrors)70.9 in72.4 in1.6 in
Height56.7 in60.6 in3.9 in
Wheelbase106.3 in103.9 in2.4 in
Curb weight2,769 lbs3,516 lbs747 lbs

Width excludes mirrors; add 8–12 inches for mirrors out. Figures are for the newest model year on record for each vehicle. See both drawn to scale.

Kia Forte vs Lexus UX: what the numbers mean

Running cost over five years: at the EPA's 15,000-mile-a-year assumption the Lexus UX burns about $1,450 of fuel annually against $1,750 for the Kia Forte. That $300 yearly gap compounds to roughly $1,500 over five years and $2,400 over eight — often more than the price difference between two trims of the same vehicle, and the single largest running-cost line item separating these two.

City and highway economy: the Lexus UX leads in both cycles — 45 mpg city and 41 mpg highway against 31 and 41 mpg — so its fuel-efficiency advantage holds whether you commute in traffic or cover long highway miles.

Powertrain choice: the Kia Forte is recorded with 3 distinct engine configurations (SIDI, 2.0, 1.8), the Lexus UX with 3 (SIDI & PFI; Hybrid, SIDI & PFI; Mild Hybrid, SIDI & PFI). Across 60 recorded Kia Forte configurations and 24 for the Lexus UX, the wider the engine spread the more the real-world fuel efficiency depends on which version you actually buy, so check the specific model year and drivetrain rather than the headline number.

Drivetrain and class: the Kia Forte is offered with Front-Wheel Drive, the Lexus UX with All-Wheel Drive, Front-Wheel Drive. All-wheel drive typically costs one to two mpg combined against the same vehicle in front- or rear-wheel drive, which is worth remembering when the gap between these two is small. The EPA classes them as Midsize Cars and Compact Cars respectively — the class drives the interior volume, cargo space and passenger space each one is measured against.

Tailpipe emissions: at their cleanest configurations the Lexus UX emits 204 g/mile of CO2 versus 256 g/mile for the Kia Forte. Emissions track fuel consumption almost exactly, so the cleaner vehicle here is also the cheaper one to fuel.

Forte vs UX: common questions

Which is better on gas, the Kia Forte or the Lexus UX?

The Lexus UX is the more efficient of the two: it reaches 43 mpg combined versus 35 mpg for the Kia Forte, a 8 mpg advantage and costs about $300 less per year to fuel.

Which costs less to run per year?

By EPA estimates at 15,000 miles a year, the Lexus UX runs about $1,450 a year in fuel at its most efficient configuration, versus about $1,750 for the Kia Forte — a difference of roughly $300 per year.

What engines do the Forte and UX offer?

Kia Forte: SIDI, 2.0, 1.8. Lexus UX: SIDI & PFI; Hybrid, SIDI & PFI; Mild Hybrid, SIDI & PFI.

Are they in the same vehicle class?

The EPA classifies the Kia Forte as Midsize Cars and the Lexus UX as Compact Cars, so they aren't a like-for-like match on size.

More Forte comparisons

More UX comparisons

Comparison id: kia-forte-vs-lexus-ux