Vehicle comparison
Hyundai Ioniq 6 vs Hyundai Sonata
Side-by-side fuel and ownership cost comparison. Estimates use 12,000 mi/year at average US gas and electricity prices.
- Updated for 2026
- EPA-style MPG
- US avg fuel prices
- EV rates vary by state
- Transparent assumptions
Lowest running cost
Hyundai Ioniq 6 wins on fuel cost
At 12,000 miles per year, the Hyundai Ioniq 6 costs about $519 per year, roughly $775 less than the Hyundai Sonata. Over 5 years, that's about $3874 in fuel savings.
Spec & cost comparison
MPG/MPGe figures are estimates based on typical recent model years.
| Spec | Hyundai Ioniq 6 | Hyundai Sonata |
|---|---|---|
| Type | EV | SEDAN |
| Fuel | Electric | Regular gas |
| City MPG/MPGe | 135 | 28 |
| Highway MPG/MPGe | 117 | 38 |
| Combined MPG/MPGe | 127 | 32 |
| Tank / Battery | 77 kWh | 16 gal |
| Energy cost | $0.16/kWh | $3.45/gal |
| Cost per mile | $0.043 | $0.108 |
Annual cost at 8k / 12k / 15k miles
Estimated yearly fuel spend at common US mileage levels.
| Miles/year | Hyundai Ioniq 6 | Hyundai Sonata | Difference |
|---|---|---|---|
| 8,000 | $346/yr · $29/mo | $863/yr · $72/mo | $517 (Hyundai Ioniq 6) |
| 12,000 | $519/yr · $43/mo | $1294/yr · $108/mo | $775 (Hyundai Ioniq 6) |
| 15,000 | $649/yr · $54/mo | $1617/yr · $135/mo | $969 (Hyundai Ioniq 6) |
Estimates only. Real costs depend on driving style, terrain, local gas/electricity prices and weather.
Which one is best for…
Best for commuting
Hyundai Ioniq 6
Highest combined MPG/MPGe and lowest cost per mile means cheaper daily driving.
See Hyundai Ioniq 6Best for road trips
Hyundai Sonata
Better highway efficiency, larger tank/battery and longer range between stops.
See Hyundai SonataBest for families
Hyundai Ioniq 6
SUVs, minivans and three-row vehicles win on space and child-seat flexibility.
See Hyundai Ioniq 6Best for lowest running cost
Hyundai Ioniq 6
Cheaper energy use and lower cost per mile at every common mileage tier.
See Hyundai Ioniq 6How we compare these vehicles
- Annual mileage
- Modeled at 12,000 mi/yr unless a scenario specifies otherwise.
- Cost per mile
- $/gal ÷ MPG, or $/kWh ÷ (MPGe ÷ 33.7) for EVs.
- EV vs gas
- Compared at average US gas and residential electricity prices — fast-charging can be 2–3× higher.
- Maintenance
- Fuel cost only — EVs typically save another $400–$1,000/yr in service and brake wear.
Sources & assumptions
- EPA fuel economy data — City / highway / combined MPG and MPGe baselines.
- U.S. Department of Energy (fueleconomy.gov) — Vehicle efficiency and EV range references.
- AAA gas price trends — Recent national and regional retail fuel averages.
- EIA electricity rates — Average residential per-kWh prices used for EV charging.
We summarize publicly available data — no scraping, no external API calls. Figures are calibrated periodically; use the calculators above for your exact inputs.
Frequently asked questions
Which is cheaper to drive, the Hyundai Ioniq 6 or Hyundai Sonata?
At 12,000 miles per year, the Hyundai Ioniq 6 costs about $519 per year vs $1294 for the Hyundai Sonata — roughly $775 less per year.
What's the MPG difference between the Hyundai Ioniq 6 and Hyundai Sonata?
The Hyundai Ioniq 6 is rated around 127 combined MPGe versus 32 MPG for the Hyundai Sonata. Highway figures are 117 vs 38.
How much will I spend on fuel over 5 years?
Driving 12,000 miles a year for five years, expect about $2595 for the Hyundai Ioniq 6 and $6469 for the Hyundai Sonata, a difference of roughly $3874.
Is the Hyundai Ioniq 6 or Hyundai Sonata better for commuting?
For pure cost per mile, the Hyundai Ioniq 6 wins. EVs charged at home typically deliver the lowest commuting cost, followed by hybrids and efficient compacts.
Which one is better for road trips?
Hyundai Sonata is generally the better road-trip choice — gas and hybrid vehicles win on long highway routes thanks to faster refueling, while EVs work best when charging stops fit your route.
Are these fuel cost numbers accurate for my driving?
They're estimates based on EPA-style combined MPG and average US gas and electricity prices. Real-world cost depends on local fuel prices, driving style, terrain, weather and how much city vs highway driving you do.