2025 head-to-head · Small SUV
2025 Kia Niro Plug-in Hybrid vs Subaru Solterra
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 · 1.6L 4-cyl · 6-speed dual-clutch · 108 MPGe + 48 MPG
On fuel costs these two are nearly tied. Driving 15,000 miles a year with 18¢/kWh electricity and $3.10/gal regular gas, the most efficient 2025 Kia Niro Plug-in Hybrid (108 MPGe + 48 MPG) costs about $887 a year to fuel and the 2025 Subaru Solterra (104 MPGe) about $864.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Kia Niro Plug-in Hybrid
- Subaru Solterra
Side by side
| Kia Niro Plug-in Hybrid | Subaru Solterra | |
|---|---|---|
| $887 | Your annual fuel cost | $864 |
| 108 MPGe + 48 MPG | Combined efficiency | 104 MPGe |
| 113 MPGe / 49 MPG | City | 114 MPGe |
| 102 MPGe / 47 MPG | Highway | 94 MPGe |
| 31 kWh | Electricity use (kWh/100 mi) | 32 kWh |
| 510 mi | Driving range | 227 mi |
| 33 mi | All-electric range | — |
| 105 cu ft | Passenger volume | — |
| 19 cu ft | Cargo volume | — |
| 71 g/mi | Tailpipe CO₂ (g/mi) | 0 g/mi |
| 9/10 | EPA fuel economy score | 9/10 |
| 10/10 | EPA greenhouse gas score | 10/10 |
| 2.8 hrs | Charge time at 240V | 11 hrs |
| Plug-in hybrid | Powertrain | Electric |
| Regular gas + electricity | Fuel | Electricity |
| 1.6L 4-cyl | Engine / motor | Electric motors (160 kW) |
| 6-speed dual-clutch | Transmission | Single-speed |
| FWD | Drivetrain | AWD |
✓ 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.
Kia Niro Plug-in Hybrid vs Subaru Solterra across model years
- Kia Niro Plug-in Hybrid
- Subaru Solterra
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
The Kia Niro Plug-in Hybrid goes farther between stops: about 510 miles on a full tank and charge, compared with 227 miles for the Subaru Solterra.
Among 133 2025 small SUVs, the Kia Niro Plug-in Hybrid ranks 19th and the Subaru Solterra 16th for lowest fuel cost.
Because the Subaru Solterra 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 Kia Niro Plug-in Hybrid; relying on DC fast chargers can erase it.
Frequently asked questions
Which is more fuel-efficient, the 2025 Kia Niro Plug-in Hybrid or the 2025 Subaru Solterra?
Measured by cost to drive, the Subaru Solterra. The Kia Niro Plug-in Hybrid is rated 108 MPGe + 48 MPG combined and the Subaru Solterra 104 MPGe (EPA, most efficient configuration of each).
How much does it cost to fuel the 2025 Kia Niro Plug-in Hybrid vs. the Subaru Solterra per year?
At 15,000 miles a year with 18¢/kWh electricity and $3.10/gal regular gas, about $887 for the Kia Niro Plug-in Hybrid and $864 for the Subaru Solterra.
Which has more range?
The Kia Niro Plug-in Hybrid: about 510 miles versus 227 miles.
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