2021 BMW Z4 mpg
Combined mpg, sDrive30i RWD
28mpg
- 25 city, 32 highway.
- Top 18% of 17 convertibles (2021).
- 4 trims: 25 to 28 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 |
|---|---|---|---|---|---|---|---|---|
| sDrive 30i Roadster 2D RWD | 2.0L 4cyl | RWD | 25 | 32 | 28 | 13.7 | 384 | $1,371 |
| sDrive30i RWD | 2.0L 4cyl | RWD | 25 | 32 | 28 | 13.7 | 384 | $1,371 |
| M40i RWD | 3.0L 6cyl | RWD | 22 | 30 | 25 | 13.7 | 343 | $1,536 |
| sDriveM40i Roadster RWD | 3.0L 6cyl | RWD | 22 | 30 | 25 | 13.7 | 343 | $1,536 |
Fuel cost
sDrive30i RWD, 28 mpg combined.
- Per year
- $1,371
- Per month
- $114
- Per mile
- 11.4 cents
- Fill the tank
- $43.84
- Best mpg: sDrive 30i Roadster 2D RWD, 28 mpg. $1,371 a year.
- Top trim: M40i RWD. $1,536 a year. $165 more than the sDrive30i RWD.
Trip cost
| Trip | Gallons | Cost |
|---|---|---|
| 100 miles | 3.1 | $10.00 |
| 300 miles | 9.4 | $30.00 |
| 500 miles | 15.6 | $50.00 |
| 1,000 miles | 31.3 | $100 |
Commute cost
- Per month
- $99
- Per year
- $1,189
- Miles a month
- 867
sDrive30i RWD. 20 miles each way, 5 days a week.
Is 28 mpg good? Yes. Beats 73% of 2026 cars.
MPG by year
Rivals
| Car | Cheapest trim | Combined mpg |
|---|---|---|
| 2021 BMW Z4 | sDrive30i RWD | 28 mpg |
| 2021 Audi A5 | Premium AWD | 28 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