2021 Mercedes-Benz C-Class mpg
Combined mpg, C 300 RWD
27mpg
- 23 city, 35 highway.
- Top 30% of 17 convertibles (2021).
- 21 trims: 20 to 27 mpg.
12,000 miles a year. Gas $3.20.
| Trim | Engine | Drive | City mpg | Hwy mpg | Combined | Tank, gal | Miles per tank | Cost a year |
|---|---|---|---|---|---|---|---|---|
| C 300 RWD | 2.0L 4cyl | RWD | 23 | 35 | 27 | 17.4 | 470 | $1,422 |
| C 300 4MATIC AWD | 2.0L 4cyl | AWD | 23 | 33 | 27 | 17.4 | 470 | $1,422 |
| C 300 RWD | 2.0L 4cyl | RWD | 24 | 33 | 27 | 17.4 | 470 | $1,422 |
| C 300 4MATIC AWD | 2.0L 4cyl | AWD | 23 | 32 | 26 | 17.4 | 452 | $1,477 |
| C 300 Cabriolet RWD | 2.0L 4cyl | RWD | 23 | 31 | 26 | 17.4 | 452 | $1,477 |
| C 300 4MATIC Cabriolet 2D AWD | 2.0L 4cyl | AWD | 22 | 30 | 25 | 17.4 | 435 | $1,536 |
| AMG C 43 4MATIC Coupe | 3.0L | AWD | 19 | 27 | 22 | N/A | N/A | $1,745 |
| AMG C 43 4MATIC Cabriolet | 3.0L | AWD | 19 | 27 | 22 | N/A | N/A | $1,745 |
| Mercedes-AMG C-Class C 43 AMG AWD | 3.0L 6cyl | AWD | 19 | 27 | 22 | N/A | N/A | $1,745 |
| Mercedes-AMG C-Class C 43 AMG Cabriolet 2D AWD | 3.0L 6cyl | AWD | 19 | 27 | 22 | N/A | N/A | $1,745 |
| AMG C 43 4MATIC Sedan | 3.0L | AWD | 18 | 27 | 21 | N/A | N/A | $1,829 |
| AMG C 63 Sedan RWD | 4.0L | RWD | 17 | 26 | 21 | N/A | N/A | $1,829 |
| AMG C 63 S Sedan RWD | 4.0L | RWD | 17 | 26 | 21 | N/A | N/A | $1,829 |
| AMG C 63 Coupe RWD | 4.0L | RWD | 17 | 26 | 20 | N/A | N/A | $1,920 |
| AMG C 63 Cabriolet RWD | 4.0L | RWD | 17 | 25 | 20 | N/A | N/A | $1,920 |
| AMG C 63 S Coupe RWD | 4.0L | RWD | 17 | 26 | 20 | N/A | N/A | $1,920 |
| AMG C 63 S Cabriolet RWD | 4.0L | RWD | 17 | 25 | 20 | N/A | N/A | $1,920 |
| Mercedes-AMG C-Class C 63 AMG Cabriolet 2D RWD | 4.0L 8cyl | RWD | 17 | 25 | 20 | N/A | N/A | $1,920 |
| Mercedes-AMG C-Class C 63 AMG RWD | 4.0L 8cyl | RWD | 17 | 26 | 20 | N/A | N/A | $1,920 |
| Mercedes-AMG C-Class C 63 S AMG Cabriolet 2D RWD | 4.0L 8cyl | RWD | 17 | 25 | 20 | N/A | N/A | $1,920 |
| Mercedes-AMG C-Class C 63 S AMG RWD | 4.0L 8cyl | RWD | 17 | 26 | 20 | N/A | N/A | $1,920 |
Fuel cost
C 300 RWD, 27 mpg combined.
- Per year
- $1,422
- Per month
- $119
- Per mile
- 11.9 cents
- Fill the tank
- $55.68
- Top trim: AMG C 63 S Cabriolet RWD. $1,920 a year. $498 more than the C 300 RWD.
Trip cost
| Trip | Gallons | Cost |
|---|---|---|
| 100 miles | 2.9 | $9.14 |
| 300 miles | 8.6 | $27.43 |
| 500 miles | 14.3 | $45.71 |
| 1,000 miles | 28.6 | $91.43 |
Commute cost
- Per month
- $103
- Per year
- $1,233
- Miles a month
- 867
C 300 RWD. 20 miles each way, 5 days a week.
Is 27 mpg good? Yes. Beats 68% of 2026 cars.
MPG by year
Rivals
| Car | Cheapest trim | Combined mpg | Compare |
|---|---|---|---|
| 2021 Mercedes-Benz C-Class | C 300 RWD | 27 mpg | |
| 2021 Audi A5 | Premium AWD | 28 mpg | Compare |
| 2021 BMW 2 Series | 228i Gran Coupe RWD | 27 mpg |
What this cannot tell you
EPA ratings. Your own mpg will differ.
Gas prices change by state and by week.
- 2 or more sources
- 1 source
- Model-level, rule or estimate
- Sources disagree