2018 head-to-head · Midsize Car
2018 Hyundai Ioniq EV vs Toyota Prius
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
FWD · Electric motor (88 kW) · Single-speed · 136 MPGe · 124 mi
The 2018 Hyundai Ioniq EV is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity and $3.10/gal regular gas, it costs about $675 a year to fuel (136 MPGe), versus $830 for the 2018 Toyota Prius (56 MPG). That's roughly $155 a year, or about $777 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Hyundai Ioniq EV
- Toyota Prius
Side by side
| Hyundai Ioniq EV | Toyota Prius | |
|---|---|---|
| $675 | Your annual fuel cost | $830 |
| 136 MPGe | Combined efficiency | 56 MPG |
| 150 MPGe | City | 58 MPG |
| 122 MPGe | Highway | 53 MPG |
| 25 kWh | Electricity use (kWh/100 mi) | — |
| 124 mi | Driving range | — |
| 96 cu ft | Passenger volume | 91 cu ft |
| 23 cu ft | Cargo volume | 27 cu ft |
| 0 g/mi | Tailpipe CO₂ (g/mi) | 158 g/mi |
| 10/10 | EPA fuel economy score | 10/10 |
| 10/10 | EPA greenhouse gas score | 10/10 |
| 4 hrs | Charge time at 240V | — |
| Electric | Powertrain | Hybrid |
| Electricity | Fuel | Regular gasoline |
| Electric motor (88 kW) | Engine / motor | 1.8L 4-cyl |
| Single-speed | Transmission | CVT |
| FWD | Drivetrain | FWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Hyundai Ioniq EV vs Toyota Prius across model years
- Hyundai Ioniq EV
- Toyota Prius
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Per EPA interior volume figures, the Hyundai Ioniq EV has more passenger space (96 vs. 91 cu ft); the Toyota Prius has more cargo space (27 vs. 23 cu ft).
Among 74 2018 midsize cars, the Hyundai Ioniq EV ranks 1st and the Toyota Prius 7th for lowest fuel cost.
Because the Hyundai Ioniq EV is fully electric, it has no tailpipe emissions and its running cost depends almost entirely on your electricity rate. Cheap overnight home charging widens its advantage over the Toyota Prius; relying on DC fast chargers can erase it.
Frequently asked questions
Which is more fuel-efficient, the 2018 Hyundai Ioniq EV or the 2018 Toyota Prius?
Measured by cost to drive, the Hyundai Ioniq EV. The Hyundai Ioniq EV is rated 136 MPGe combined and the Toyota Prius 56 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2018 Hyundai Ioniq EV vs. the Toyota Prius per year?
At 15,000 miles a year with 18¢/kWh electricity and $3.10/gal regular gas, about $675 for the Hyundai Ioniq EV and $830 for the Toyota Prius.
Which has more cargo space?
The Toyota Prius, with 27 cu ft of luggage volume versus 23 cu ft (EPA interior volume index).
Hyundai Ioniq EV vs Toyota Prius in other years
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