2025 head-to-head · Midsize & Large SUV
2025 BMW iX vs Rivian R1S
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
On fuel costs these two are nearly tied. Driving 15,000 miles a year with 18¢/kWh electricity, the most efficient 2025 BMW iX (87 MPGe) costs about $1,042 a year to fuel and the 2025 Rivian R1S (85 MPGe) about $1,066.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- BMW iX
- Rivian R1S
Side by side
| BMW iX | Rivian R1S | |
|---|---|---|
| $1,042 | Your annual fuel cost | $1,066 |
| 87 MPGe | Combined efficiency | 85 MPGe |
| 89 MPGe | City | 94 MPGe |
| 85 MPGe | Highway | 77 MPGe |
| 38.6 kWh | Electricity use (kWh/100 mi) | 39.5 kWh |
| 219 mi | Driving range | 329 mi |
| 0 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 |
| 9 hrs | Charge time at 240V | 12 hrs |
| Electric | Powertrain | Electric |
| Electricity | Fuel | Electricity |
| Electric motors (420 kW) | Engine / motor | Electric motors (528 kW) |
| Single-speed | Transmission | Single-speed |
| AWD | Drivetrain | 4WD |
✓ 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.
BMW iX vs Rivian R1S across model years
- BMW iX
- Rivian R1S
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 Rivian R1S goes farther between stops: about 329 miles on a charge, compared with 219 miles for the BMW iX.
Among 94 2025 midsize & large SUVs, the BMW iX ranks 13th and the Rivian R1S 14th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2025 BMW iX or the 2025 Rivian R1S?
Measured by cost to drive, the BMW iX. The BMW iX is rated 87 MPGe combined and the Rivian R1S 85 MPGe (EPA, most efficient configuration of each).
How much does it cost to fuel the 2025 BMW iX vs. the Rivian R1S per year?
At 15,000 miles a year with 18¢/kWh electricity, about $1,042 for the BMW iX and $1,066 for the Rivian R1S.
Which has more range?
The Rivian R1S: about 329 miles versus 219 miles.
BMW iX vs Rivian R1S in other years
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