Hyundai Ioniq Plug-in Hybrid
52 MPG The 2022 Hyundai Ioniq Plug-in Hybrid is EPA-rated at 52 MPG combined (52 city / 51 highway). Over 15,000 miles a year that is about 288 gallons, $923 a year in fuel, or $0.062 per mile at $3.20/gal.
Across its full 2018–2022 run it averages 52 MPG, essentially flat across 5 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 | $0.048 | $481 | $721 | $962 |
| $3.00/gal | $0.058 | $577 | $865 | $1154 |
| $3.20/gal | $0.062 | $615 | $923 | $1231 |
| $3.50/gal | $0.067 | $673 | $1010 | $1346 |
| $4.00/gal | $0.077 | $769 | $1154 | $1538 |
| $4.50/gal | $0.087 | $865 | $1298 | $1731 |
| $5.00/gal | $0.096 | $962 | $1442 | $1923 |
Every model year
| Year | Combined | City | Highway | EPA fuel cost/yr | CO₂ g/mi | Trims |
|---|---|---|---|---|---|---|
| 2022 | 52 MPG | 52 | 51 | $1200 | 74 | 1 |
| 2021 | 52 MPG | 52 | 51 | $1200 | 74 | 1 |
| 2020 | 52 MPG | 53 | 52 | $1200 | 74 | 1 |
| 2019 | 52 MPG | 53 | 52 | $1200 | 74 | 1 |
| 2018 | 52 MPG | 53 | 52 | $1200 | 75 | 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 261 midsize cars models tracked here, the Hyundai Ioniq Plug-in Hybrid ranks 14 on current figures, against a class average of 27.1 MPG.
Closest more-efficient alternatives in the same class: Hyundai Elantra Hybrid Blue (54), Toyota Prius AWD (54), Toyota Prius Eco (56), Toyota Prius (57), Honda Clarity FCV (68).
Tailpipe CO₂ is rated at 74 grams per mile, which works out to roughly 1.1 tonnes a year at 15,000 miles.
Questions
What MPG does the Hyundai Ioniq Plug-in Hybrid get?
The 2022 Hyundai Ioniq Plug-in Hybrid is rated at 52 MPG combined by the EPA — 52 city and 51 highway. Across all 5 model years in the database it averages 52 MPG, ranging from 52 to 52 depending on year and trim.
How much does a Hyundai Ioniq Plug-in Hybrid cost in fuel per year?
At 52 MPG and 15,000 miles a year, it burns about 288 gallons — roughly $923 a year with fuel at $3.20 a gallon, or $0.062 per mile. The EPA's own published annual figure for the 2022 model is $1200.
Has the Hyundai Ioniq Plug-in Hybrid become more efficient over time?
Barely. It sits at 52 MPG today against 52 in 2018 — essentially flat across 5 model years, with efficiency gains offset by weight and power creep.
Is the Hyundai Ioniq Plug-in Hybrid efficient for its class?
It ranks 14 of 261 in the Midsize Cars class on current figures, against a class average of 27.1 MPG. That is 24.9 better 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.