Hyundai · Midsize cars · Electric
Hyundai Ioniq 6: MPG and annual fuel cost, 2025
The Hyundai Ioniq 6 was last rated in the data for model year 2025, at 135 MPGe combined, the most efficient of the 12 midsize cars rated that year.
- 135MPGe combined1st of 12 in class
- $550a year in fuel1st of 12 in class
- 0g/mile CO2
Where it stands
The midsize cars rated for 2025 run from 22 to 135 MPGe, with a median of 29 MPGe.
Among all electric models of the year, regardless of size, it is the most efficient of the 17 electric models rated that year.
In its class, just behind it is the Polestar 2 at 114 MPGe.
Electric models use no fuel and have no tailpipe CO2. Efficiency is given in MPGe, the miles driven on 33.7 kilowatt-hours of electricity, which is the energy in one gallon of gasoline. The annual cost is electricity at $0.15 per kWh.
Fuel cost and CO2
At 15,000 miles a year with 55% of them in the city, with electricity at $0.15 per kWh, the annual fuel bill of the most efficient version is about $550. That is $2,075 less than the midsize cars median of $2,625.
It has no tailpipe emissions, so the CO2 column is zero; the emissions from making the electricity are not part of this figure.
Rated versions
The city rating of 151 is 31 above the highway rating of 120. 5 versions are rated for 2025. The most efficient, Ioniq 6 Standard Range: electric motor, Automatic (A1), RWD, gets 135 MPGe; the least efficient listed, Ioniq 6 AWD (20 inch Wheels): electric motor, Automatic (A1), AWD, gets 103 MPGe, a gap of 32 MPGe. With the file's assumptions that gap is worth about $200 a year in fuel.
| Version | Combined MPG | City MPG | Highway MPG | Annual fuel cost | CO2 g/mile | Electric range |
|---|---|---|---|---|---|---|
| Ioniq 6 Standard Range: electric motor, Automatic (A1), RWD | 135 | 151 | 120 | $550 | 0 | 240 |
| Ioniq 6 RWD (18 inch Wheels): electric motor, Automatic (A1), RWD | 132 | 144 | 120 | $600 | 0 | 342 |
| Ioniq 6 AWD (18 inch Wheels): electric motor, Automatic (A1), AWD | 121 | 130 | 111 | $650 | 0 | 316 |
| Ioniq 6 RWD (20 inch Wheels): electric motor, Automatic (A1), RWD | 111 | 123 | 100 | $650 | 0 | 291 |
| Ioniq 6 AWD (20 inch Wheels): electric motor, Automatic (A1), AWD | 103 | 111 | 94 | $750 | 0 | 270 |
Year by year
The Hyundai Ioniq 6 is in the data for 3 of the 8 model years from 2019 to 2026. Between 2023 and 2025 the best combined rating fell by 5 MPGe, from 140 to 135.
| Model year | Versions | Best MPG | Lowest MPG | Fuel cost | CO2 g/mi | Class median |
|---|---|---|---|---|---|---|
| 2025 | 5 | 135 | 103 | $550 | 0 | 29 |
| 2024 | 5 | 140 | 103 | $550 | 0 | 30 |
| 2023 | 5 | 140 | 103 | $550 | 0 | 28 |
Similar models
| Model | Powertrain | Combined MPG | Annual fuel cost | Model year |
|---|---|---|---|---|
| Polestar 2 | Electric | 114 | $650 | 2025 |
| Toyota Prius Plug-in hybrid | Plug-in hybrid | 52 | $1,300 | 2025 |
| Subaru Legacy | Gasoline | 30 | $2,250 | 2025 |
| Lexus ES | Gasoline | 28 | $2,400 | 2025 |
| Lexus LS Hybrid | Hybrid | 25 | $3,300 | 2025 |
Compare and rank
Rankings: Midsize cars.
Data: US EPA and DOE, as prepared in methods and data.