Ford Mustang Convertible
21.8 MPG The 2023 Ford Mustang Convertible is EPA-rated at 21.8 MPG combined (18.8 city / 26.5 highway). Over 15,000 miles a year that is about 688 gallons, $2202 a year in fuel, or $0.147 per mile at $3.20/gal.
Across its full 2011–2023 run it averages 21.8 MPG, falling by 1.2 MPG over 13 model years.
Running cost at different fuel prices and mileages
The figure everyone actually wants, and the one the EPA does not publish — because it depends on a fuel price no agency will commit to.
| Fuel price | Per mile | 10,000 mi/yr | 15,000 mi/yr | 20,000 mi/yr |
|---|---|---|---|---|
| $2.50/gal | $0.115 | $1147 | $1720 | $2294 |
| $3.00/gal | $0.138 | $1376 | $2064 | $2752 |
| $3.20/gal | $0.147 | $1468 | $2202 | $2936 |
| $3.50/gal | $0.161 | $1606 | $2408 | $3211 |
| $4.00/gal | $0.183 | $1835 | $2752 | $3670 |
| $4.50/gal | $0.206 | $2064 | $3096 | $4128 |
| $5.00/gal | $0.229 | $2294 | $3440 | $4587 |
Every model year
| Year | Combined | City | Highway | EPA fuel cost/yr | CO₂ g/mi | Trims |
|---|---|---|---|---|---|---|
| 2023 | 21.8 MPG | 18.8 | 26.5 | $2888 | 415 | 4 |
| 2022 | 21.8 MPG | 18.8 | 26.5 | $2888 | 414 | 4 |
| 2021 | 21.8 MPG | 18.8 | 26.5 | $2888 | 413 | 4 |
| 2020 | 21.3 MPG | 18.3 | 26.7 | $2950 | 419 | 3 |
| 2019 | 21.3 MPG | 18.3 | 26.7 | $2950 | 422 | 3 |
| 2018 | 21.3 MPG | 18.3 | 27 | $2950 | 419 | 3 |
| 2017 | 20.3 MPG | 17.5 | 25.3 | $3125 | 447 | 4 |
| 2016 | 20.5 MPG | 17.5 | 26 | $3075 | 434 | 2 |
| 2015 | 21 MPG | 17.5 | 26 | $3025 | 433 | 2 |
| 2014 | 23 MPG | 19 | 29 | $2700 | 392 | 1 |
| 2013 | 23 MPG | 19 | 29 | $2700 | 392 | 1 |
| 2012 | 23 MPG | 19 | 29 | $2700 | 386 | 1 |
| 2011 | 23 MPG | 19 | 29 | $2700 | 386 | 1 |
Where a model year offered several engines or drivetrains, the figure is the average across all EPA-tested trims that year — the trim count is shown so you can see how much averaging is involved.
How it compares in its class
Among the 229 subcompact cars models tracked here, the Ford Mustang Convertible ranks 133 on current figures, against a class average of 24.2 MPG.
Closest more-efficient alternatives in the same class: Audi S5 (22), Audi S5 Cabriolet (22), BMW 328ci (22), BMW 335ci (22), BMW 335ci Convertible (22).
Tailpipe CO₂ is rated at 415 grams per mile, which works out to roughly 6.2 tonnes a year at 15,000 miles.
Questions
What MPG does the Ford Mustang Convertible get?
The 2023 Ford Mustang Convertible is rated at 21.8 MPG combined by the EPA — 18.8 city and 26.5 highway. Across all 13 model years in the database it averages 21.8 MPG, ranging from 17 to 24 depending on year and trim.
How much does a Ford Mustang Convertible cost in fuel per year?
At 21.8 MPG and 15,000 miles a year, it burns about 688 gallons — roughly $2202 a year with fuel at $3.20 a gallon, or $0.147 per mile. The EPA's own published annual figure for the 2023 model is $2888.
Has the Ford Mustang Convertible become more efficient over time?
No — it has actually gone backwards, from 23 MPG in 2011 to 21.8 in 2023. That usually reflects the model growing heavier, more powerful, or moving upmarket rather than the engineering getting worse.
Is the Ford Mustang Convertible efficient for its class?
It ranks 133 of 229 in the Subcompact Cars class on current figures, against a class average of 24.2 MPG. That is 2.4 worse than typical for the class.
EPA test figures from fueleconomy.gov. Cost per mile and annual fuel spend are computed at a reference price of $3.20 per gallon — use your own price. Estimates based on official test figures and average fuel prices. Real-world consumption varies with driving style, load, terrain and maintenance.