2021 Porsche 718 Boxster mpg
Combined mpg, RWD
22mpg
- 20 city, 26 highway.
- Top 48% of 17 convertibles (2021).
- 8 trims: 19 to 22 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 |
|---|---|---|---|---|---|---|---|---|
| RWD | 2.0L 4cyl | RWD | 20 | 26 | 22 | 14.2 to 16.9 | N/A | $1,745 |
| T RWD | 2.0L 4cyl | RWD | 20 | 26 | 22 | 14.2 to 16.9 | N/A | $1,745 |
| S RWD | 2.5L 4cyl | RWD | 19 | 24 | 21 | 16.9 | 355 | $1,829 |
| GTS 4.0 RWD | 4.0L 6cyl | RWD | 17 | 24 | 19 | 16.9 | 321 | $2,021 |
| Spyder RWD | 4.0L 6cyl | RWD | 17 | 23 | 19 | 16.9 | 321 | $2,021 |
| 25 Years Anniversary Edition Roadster 2D RWD | 4.0L 6cyl | RWD | 17 | 24 | 19 | 16.9 | 321 | $2,021 |
| 25 Years RWD | 4.0L 6cyl | RWD | 17 | 24 | 19 | 16.9 | 321 | $2,021 |
| 718 Spyder RWD | 4.0L 6cyl | RWD | 17 | 23 | 19 | 16.9 | 321 | $2,021 |
Fuel cost
RWD, 22 mpg combined.
- Per year
- $1,745
- Per month
- $145
- Per mile
- 14.5 cents
- Top trim: 25 Years Anniversary Edition Roadster 2D RWD. $2,021 a year. $276 more than the RWD.
Trip cost
| Trip | Gallons | Cost |
|---|---|---|
| 100 miles | 3.8 | $12.31 |
| 300 miles | 11.5 | $36.92 |
| 500 miles | 19.2 | $61.54 |
| 1,000 miles | 38.5 | $123 |
Commute cost
- Per month
- $126
- Per year
- $1,513
- Miles a month
- 867
RWD. 20 miles each way, 5 days a week.
Is 22 mpg good? No. Beats 34% of 2026 cars.
MPG by year
Rivals
| Car | Cheapest trim | Combined mpg |
|---|---|---|
| 2021 Porsche 718 Boxster | RWD | 22 mpg |
| 2021 Chevrolet Corvette | Stingray RWD | 19 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