- Newest year: 2026
- Hybrid
- Small SUVs
2020-2026 Mercedes-Benz GLB-Class MPG & Fuel Cost
7 model years · 22–28 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 3 of 10 small SUV configurations, MY2026. Ranked against all rated configurations, not sales-weighted.
2020-2026 Mercedes-Benz GLB-Class at a glance
The 2020-2026 Mercedes-Benz GLB-Class covers 7 model years in the EPA database (20 configurations in all), rated 22–28 MPG combined. The newest model year, 2026, costs about $2,820 a year to fuel for its most efficient version, the GLB250 2.0L 4-cyl turbo FWD (28 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). Powertrains over the years: hybrid and gas. EPA changed the ratings in 2021, 2022, 2023, 2024, 2025 and 2026. The best combined rating in the generation, 28 MPG, was reached in 2024, 2025 and 2026.
2020-2026 Mercedes-Benz GLB-Class by model year
| Model year | Powertrains | Combined | $/yr | EPA ratings |
|---|---|---|---|---|
| 2026 | Hybrid | 23–28 MPG | $2,820–$3,510 | Ratings changed |
| 2025 | Hybrid | 23–28 MPG | $2,820–$3,520 | Ratings changed |
| 2024 | Hybrid | 23–28 MPG | $2,880–$3,520 | Ratings changed |
| 2023 | Gas | 23–27 MPG | $3,000–$3,470 | Ratings changed |
| 2022 | Gas | 22–27 MPG | $3,000–$3,590 | Ratings changed |
| 2021 | Gas | 23–26 MPG | $3,050–$3,450 | Ratings changed |
| 2020 | Gas | 26 MPG | $3,080–$3,140 | First year |
What the 2026 GLB250 2.0L 4-cyl turbo FWD costs to drive
Per month
$235
$2,820 a year ÷ 12
Per 25 miles
$4.70
Per 100 miles
$18.80
Five years
$14,100
5 × the yearly cost, prices held at today's level
vs the small SUV median
$570more a year
Class median $2,250 a year, MY2026
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2026 Mercedes-Benz GLB-Class MPG
Versus 2025: The most efficient configuration stays at 28 MPG. Its annual cost stays at $2,820.
Hybrid configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| GLB250 (Most efficient) | 2.0L 4-cyl turbo | FWD | 25 | 33 | 28 | $2,820 |
| GLB250 4matic | 2.0L 4-cyl turbo | AWD | 24 | 33 | 27 | $2,950 |
| AMG GLB35 4matic | 2.0L 4-cyl turbo | AWD | 21 | 27 | 23 | $3,510 |
3 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2025 Mercedes-Benz GLB-Class MPG
23–28 MPG · $2,820–$3,520/yr
Versus 2024: The most efficient configuration stays at 28 MPG. Its annual cost goes from $2,880 to $2,820, $60 less.
Hybrid configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| GLB250 (Most efficient) | 2.0L 4-cyl turbo | FWD | 25 | 33 | 28 | $2,820 |
| GLB250 4matic | 2.0L 4-cyl turbo | AWD | 24 | 33 | 27 | $2,950 |
| AMG GLB35 4matic | 2.0L 4-cyl turbo | AWD | 21 | 26 | 23 | $3,520 |
3 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2024 Mercedes-Benz GLB-Class MPG
23–28 MPG · $2,880–$3,520/yr
Versus 2023: The most efficient configuration moves from 27 to 28 MPG, up 1. Its annual cost goes from $3,000 to $2,880, $120 less.
Hybrid configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| GLB250 (Most efficient) | 2.0L 4-cyl turbo | FWD | 25 | 33 | 28 | $2,880 |
| GLB250 4matic | 2.0L 4-cyl turbo | AWD | 24 | 32 | 27 | $2,980 |
| AMG GLB35 4matic | 2.0L 4-cyl turbo | AWD | 21 | 26 | 23 | $3,520 |
3 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2023 Mercedes-Benz GLB-Class MPG
23–27 MPG · $3,000–$3,470/yr
Versus 2022: The most efficient configuration stays at 27 MPG. Its annual cost stays at $3,000.
Gas configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| GLB250 (Most efficient) | 2.0L 4-cyl turbo | FWD | 24 | 32 | 27 | $3,000 |
| GLB250 4matic | 2.0L 4-cyl turbo | AWD | 22 | 30 | 25 | $3,220 |
| AMG GLB35 4matic | 2.0L 4-cyl turbo | AWD | 21 | 27 | 23 | $3,470 |
3 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2022 Mercedes-Benz GLB-Class MPG
22–27 MPG · $3,000–$3,590/yr
Versus 2021: The most efficient configuration moves from 26 to 27 MPG, up 1. Its annual cost goes from $3,050 to $3,000, $50 less.
Gas configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| GLB250 (Most efficient) | 2.0L 4-cyl turbo | FWD | 24 | 32 | 27 | $3,000 |
| GLB250 4matic | 2.0L 4-cyl turbo | AWD | 22 | 30 | 25 | $3,260 |
| AMG GLB35 4matic | 2.0L 4-cyl turbo | AWD | 20 | 27 | 22 | $3,590 |
3 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2021 Mercedes-Benz GLB-Class MPG
23–26 MPG · $3,050–$3,450/yr
Versus 2020: The most efficient configuration stays at 26 MPG. Its annual cost goes from $3,080 to $3,050, $30 less.
Gas configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| GLB250 (Most efficient) | 2.0L 4-cyl turbo | FWD | 23 | 31 | 26 | $3,050 |
| GLB250 4matic | 2.0L 4-cyl turbo | 4WD | 23 | 30 | 26 | $3,150 |
| AMG GLB35 4matic | 2.0L 4-cyl turbo | 4WD | 21 | 26 | 23 | $3,450 |
3 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2020 Mercedes-Benz GLB-Class MPG
26 MPG · $3,080–$3,140/yr
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| GLB250 4matic (Most efficient) | 2.0L 4-cyl turbo | 4WD | 23 | 31 | 26 | $3,080 |
| GLB250 | 2.0L 4-cyl turbo | FWD | 23 | 30 | 26 | $3,140 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Fuel cost by state
Yearly cost of the GLB250 2.0L 4-cyl turbo FWD: $3,360 in California and $2,450 in Texas, a $910 difference.
- California $3,360
- Washington $3,160
- New York $2,790
- Florida $2,580
- Texas $2,450
Similar cars
Closest combined MPG among MY2026 small SUV models.
Generations
- 2020-2026 (X247)
Frequently asked questions
What gas mileage does the 2020-2026 Mercedes-Benz GLB-Class get?
EPA rates the 2020-2026 Mercedes-Benz GLB-Class at 22–28 MPG combined across 20 configurations and 7 model years. The most efficient version, the 2026 GLB250 2.0L 4-cyl turbo FWD, is rated 28 MPG (25 city, 33 highway). By powertrain: Hybrid: 23–28 MPG; Gas: 22–27 MPG.
Which years had the best MPG in the 2020-2026 Mercedes-Benz GLB-Class?
The GLB250 2.0L 4-cyl turbo FWD reached the generation's best combined rating, 28 MPG, in 2024, 2025 and 2026. The lowest top rating, 26 MPG, was in 2020 and 2021.
Did EPA ratings change during the 2020-2026 Mercedes-Benz GLB-Class?
Yes. Ratings changed in 2021, 2022, 2023, 2024, 2025 and 2026.
How much does it cost to fuel a 2026 Mercedes-Benz GLB-Class per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the GLB250 2.0L 4-cyl turbo FWD costs about $2,820 a year. Across all 3 configurations the cost runs $2,820–$3,510 a year. That is a $690 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2026 Mercedes-Benz GLB-Class 100 miles?
About $18.80 per 100 miles for the GLB250 2.0L 4-cyl turbo FWD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $18.80 and $23.40 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2026 Mercedes-Benz GLB-Class more efficient in the city or on the highway?
The GLB250 2.0L 4-cyl turbo FWD is rated 25 city and 33 highway MPG, so it is more efficient on the highway, by 8 MPG.
How does the 2026 Mercedes-Benz GLB-Class compare with other small SUV configurations?
The GLB250 2.0L 4-cyl turbo FWD costs about $2,820 a year to fuel, $570 more than the class median of $2,250, and less than 3 of 10 small SUV configurations. The comparison covers all 296 rated small SUV configurations for MY2026, not weighted by sales.
Is the 2026 Mercedes-Benz GLB-Class different from the 2025 model?
The most efficient configuration stays at 28 MPG. Its annual cost stays at $2,820. EPA lists 3 configurations for 2026 against 3 configurations for 2025. See the 2025 Mercedes-Benz GLB-Class for that year.