Mercedes-Benz GLB-Class MPG by Year

By , Gas Mileage Calculators

Here's the official EPA Mercedes-Benz GLB-Class MPG for every engine and drivetrain from 2020 to 2026.

Best 2026 GLB-Class
28 MPG
2026 GLB250 (FWD)
Most efficient GLB-Class ever
28 MPG
2024-2026 GLB250
2026 range
23-28 MPG
Across 3 versions rated that year

GLB-Class MPG by Year and Version

3 configurations

The EPA has rated 20 configurations of the GLB-Class. Pick a year to compare engines and drivetrains.

EPA ratings for the 2026 Mercedes-Benz GLB-Class
VersionEngineTransmissionDriveCityHwyCombinedEPA
GLB250Mild hybridPremium Gasoline2.0L 4-cylAuto (AM8)FWD253328View
GLB250 4maticMild hybridPremium Gasoline2.0L 4-cylAuto (AM8)AWD243327View
AMG GLB35 4maticMild hybridPremium Gasoline2.0L 4-cylAuto (AM8)AWD212723View

GLB-Class MPG Over the Years

Each bar shows the range of combined MPG across every GLB-Class configuration the EPA rated that year, from the thirstiest version to the most efficient. Hover or tap a year to see the numbers.

Mercedes-Benz GLB-Class combined MPG range by model year
Gas engines only

How the GLB-Class Compares

The EPA rated 4 utility vehicles for 2026. The best GLB-Class version, at 28 MPG combined, ranks 2nd of 4. Combined ratings in the class run from 16 to 29 MPG, with a median of 22. Plug-in hybrids and electric models are ranked separately.

Best combined rating for each utility vehicle the EPA rated for 2026, top 5
RankModelCombined
1Mercedes-Benz GLA-Class29 MPG
2Mercedes-Benz GLB-Class28 MPG
3Chevrolet Silverado16 MPG
3GMC Sierra16 MPG

What Does a GLB-Class Cost to Fuel?

Pick a GLB-Class, 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.

Yearly cost
Enter a price
Per month-
Gallons per year-
Cost per mile-
Your blended MPG-
Real-world results vary with driving style, weather, tire condition and maintenance.

GLB-Class MPG Questions

Which GLB-Class year gets the best gas mileage?

The 2024 to 2026 GLB250 holds the top EPA rating at 28 MPG combined (25 city, 33 highway).

Does all-wheel drive hurt GLB-Class fuel economy?

A little. On the 2026 GLB-Class, the best front-wheel drive version is rated at 28 MPG combined and the best all-wheel drive version at 27 MPG.

Why doesn't my GLB-Class match the EPA numbers?

EPA ratings come from standardized lab tests. Your results depend on speed, climate, idling, passengers and cargo, roof racks, tire pressure and upkeep. The ratings are best for comparing one vehicle against another. To track your own numbers, try the MPG calculator.

Keep Going

Compare two vehiclesSee the yearly fuel cost gap between a GLB-Class and another vehicle. Price a road tripWork out the fuel cost for a trip in your GLB-Class on our sister site, FuelPriceCalculator.com. All Mercedes-Benz modelsRatings for the E-Class, C-Class, S-Class, SL-Class and every other Mercedes-Benz. Mercedes-Benz GLA-Class MPGAnother Mercedes-Benz, rated 25 to 29 MPG combined for 2026. Mercedes-Benz C-Class MPGAnother Mercedes-Benz, rated 22 to 29 MPG combined for 2026. Mercedes-Benz CLE-Class MPGAnother Mercedes-Benz, rated 22 to 27 MPG combined for 2026.

Where These Numbers Come From

This page was built by Cedrick Reese from the U.S. EPA fuel economy dataset on fueleconomy.gov, which holds 20 ratings for the Mercedes-Benz GLB-Class from 2020 to 2026. 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