The Hyundai Ioniq 6 does 111.5 mpg combined (121.3 city, 102.3 highway), which works out to about $344 a year in fuel at $3.20 a gallon and 12,000 miles. Engine choice matters more than you'd think: Electric does 138.3 mpg while 1.6L 4-cyl does 31 — a difference of $961 a year. Against other Electric cars it sits above the average of 99.7 mpg.
Every Hyundai Ioniq 6 engine, compared
Picking the right version of the same car often saves more fuel than picking a different car altogether. Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| Electric | 152.3 / 124.7 | 2023–2025 | $278 | |
| 1.6L 4-cyl | 28 / 35 | 2026–2026 | $1,239 |
What that actually costs
Miles per gallon is an abstraction; the fuel bill is not. Here it is in money, at 12,000 miles a year and $3.20 a gallon.
| Measure | Value |
|---|---|
| Cost per mile | $0.029 |
| Fuel per year | $344 |
| Fuel over five years | $1,720 |
| Against other Electric cars | −$41 a year |
| EPA's own estimate | $900 a year |
City or highway — who is this car for
The gap between city and highway figures tells you whom the car suits. A wide gap punishes stop-and-start traffic; a narrow one means the car doesn't care where you drive it.
| Measure | Value | Reading |
|---|---|---|
| City | 121.3 mpg | $317 a year if you only drive in town |
| Highway | 102.3 mpg | $375 a year if you mostly commute |
| Gap | +-19 mpg (-16%) | Narrow — equally happy either way |
How the Ioniq 6 changed over the years
Combined figure by model year. Jumps usually mark a new generation or a new engine; dips often mean a heavier body or added all-wheel drive.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2026 | 28 / 35 | 1 | $1,239 | |
| 2025 | 151 / 120 | 1 | $284 | |
| 2024 | 153 / 127 | 1 | $274 | |
| 2023 | 153 / 127 | 1 | $274 |
MPG is a number. Dollars per year is the answer.
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How we count
Fuel-economy figures come from EPA fueleconomy.gov — the same laboratory numbers printed on the window sticker. We don't adjust them; real-world consumption depends on how and where you drive.
What we add is money. Yearly cost assumes 12,000 miles at $3.20 a gallon — change either and the ranking stays, only the size of the bill moves. Cost per mile is the same figure divided out, useful when comparing a commute against a weekend car.
Frequently asked questions
What mpg does the Hyundai Ioniq 6 get?
111.5 mpg combined on average — 121.3 in the city and 102.3 on the highway, per EPA ratings across 2023–2026.
How much does a Hyundai Ioniq 6 cost in fuel per year?
About $344 at 12,000 miles and $3.20 a gallon — roughly $1,720 over five years, or 0.029 dollars a mile.
Which Ioniq 6 engine is the most economical?
The Electric at 138.3 mpg, against 31 for the 1.6L 4-cyl — a difference of about $961 a year.
Is the Ioniq 6 good on fuel compared with similar cars?
Against other Electric cars it sits above the average of 99.7 mpg, computed across 540 ratings.
Are these real-world figures?
No — they are EPA laboratory ratings, the same ones on the window sticker. Real consumption depends on driving style, terrain, load and weather, and is typically a little worse.