2021 · Subcompact Car · Gas
2021 Mercedes-Benz A-Class MPG & fuel economy
The 2021 Mercedes-Benz A-Class is a subcompact car offered in 3 EPA-rated configurations. The most efficient version returns 29 MPG combined (25 city / 36 highway) on premium gasoline. Across the lineup, combined ratings range from 25 to 29 MPG. That's up 1 MPG from the 2020 model. Among 34 subcompact cars rated for 2021, it ranks 12th for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $2,043 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 2021 Mercedes-Benz A-Class's fuel average is 12.3 km/L (8.1 L/100 km), or 29 MPG combined: 10.6 km/L in the city and 15.3 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 25 | 10.6 | 9.4 |
| Highway | 36 | 15.3 | 6.5 |
| Combined | 29 | 12.3 | 8.1 |
How it ranks among 2021 Subcompact Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
A-Class MPG across model years
Full history →3 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| FWD · 2.0L 4-cyl turbo · 7-speed dual-clutch A220 |
Gas | 25 MPG | 36 MPG | 29 MPG | — | $2,043 |
| 4WD · 2.0L 4-cyl turbo · 7-speed dual-clutch A220 4matic |
Gas | 25 MPG | 34 MPG | 28 MPG | — | $2,116 |
| 4WD · 2.0L 4-cyl turbo · 7-speed dual-clutch AMG A35 4matic |
Gas | 22 MPG | 29 MPG | 25 MPG | — | $2,370 |
Specs (most efficient configuration)
- Fuel
- Premium gasoline
- Engine / motor
- 2.0L 4-cyl turbo
- Transmission
- 7-speed dual-clutch
- Drivetrain
- FWD
- Passenger volume
- 91 cu ft
- Cargo volume
- 9 cu ft
- Tailpipe CO₂
- 309 g/mi
- EPA fuel economy score
- 6/10
- EPA greenhouse gas score
- 6/10
2021 Mercedes-Benz A-Class vs. rivals
Compare the 2021 A-Class
With any other car from any year, including other A-Class model years. Type a year to jump, e.g. "2015 Accord".
Frequently asked questions
What is the gas mileage of the 2021 Mercedes-Benz A-Class?
Up to 29 MPG combined (25 city / 36 highway); ratings range from 25 to 29 MPG depending on configuration.
What fuel does the 2021 Mercedes-Benz A-Class use?
Premium gasoline (premium is required or recommended by the manufacturer).
What is the fuel average in km/L for the 2021 Mercedes-Benz A-Class?
The 2021 Mercedes-Benz A-Class's fuel average is 12.3 km/L (8.1 L/100 km), or 29 MPG combined: 10.6 km/L in the city and 15.3 km/L on the highway.
How much does it cost to fuel the 2021 Mercedes-Benz A-Class per year?
About $2,043 at 15,000 miles a year with $3.95/gal premium gas, or $13.62 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.