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Mercedes-Benz GLB (X247)
Shown: Mercedes-Benz GLB (X247). Photo: Jason Lawrence, CC BY 2.0, via Wikimedia Commons
  • Hybrid
  • Small SUVs
  • MY2020–2026

Mercedes-Benz GLB-Class MPG & Fuel Cost by Year

7 model years · 2020–2026

28 MPG
Combined
25 MPG
City
33 MPG
Highway
Annual cost · MY2026 GLB250 2.0L 4-cyl turbo FWD
$2,820

15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)

All Mercedes-Benz models

Mercedes-Benz GLB-Class fuel economy at a glance

EPA has rated the Mercedes-Benz GLB-Class for 7 model years, 2020 to 2026. Across those years its combined rating runs 22–28 MPG. The latest model year, 2026, has 3 configurations rated 23–28 MPG combined and costing $2,820–$3,510 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2020 is the 2026 GLB250 2.0L 4-cyl turbo FWD, at 28 MPG.

Mercedes-Benz GLB-Class MPG by year

22242628 20202026 Gas Hybrid 22242628 20202026 Gas Hybrid
Combined MPG: the line is the most efficient configuration, the shaded band reaches down to the least efficient. Dotted lines mark new generations.
Mercedes-Benz GLB-Class: combined fuel economy and annual fuel cost for each model year, grouped by generation
Year Gas (MPG)Hybrid (MPG) $/yr
2020-2026 (X247) Generation page
2026 —23–28 $2,820–$3,510
2025 —23–28 $2,820–$3,520
2024 —23–28 $2,880–$3,520
2023 23–27— $3,000–$3,470
2022 22–27— $3,000–$3,590
2021 23–26— $3,050–$3,450
2020 26— $3,080–$3,140

Costs use the current EIA price set and 15,000 miles a year for every year, so years are comparable. Green marks the best year for each powertrain.

Mercedes-Benz GLB-Class generations

1 generations between 2020 and 2026. Open one for the table of every model year and configuration.

Mercedes-Benz GLB (X247)

2020-2026 Mercedes-Benz GLB-Class (X247)

22–28 MPG · $2,820–$3,590/yr

2026 powertrain options

Hybrid · 2.0L
Combined
23–28 MPG
Per year
$2,820–$3,510
See hybrid configurations
EPA ratings: fueleconomy.gov file of Sep 29, 2026 · premium gasoline $5.36/gal (U.S. average, Sep 2026) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Frequently asked questions

What is the Mercedes-Benz GLB-Class's gas mileage by year?

EPA combined ratings for the Mercedes-Benz GLB-Class run 22–28 MPG across model years 2020 to 2026. The latest year, 2026, is rated 23–28 MPG.

Which Mercedes-Benz GLB-Class model year has the best gas mileage?

The 2026 Mercedes-Benz GLB-Class GLB250 2.0L 4-cyl turbo FWD has the highest combined rating since 2020, at 28 MPG.

How much does a Mercedes-Benz GLB-Class cost to fuel per year?

For MY2026, EPA-rated configurations cost $2,820–$3,510 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $2,820.

Has the Mercedes-Benz GLB-Class's fuel economy improved over time?

Yes. The most efficient configuration moved from 26 MPG in 2020 to 28 MPG in 2026, 2 MPG more.

Is there a hybrid, plug-in or electric Mercedes-Benz GLB-Class?

Yes. Hybrid versions are rated from 2024 to 2026 (23–28 MPG).