2026 head-to-head · Full-Size Pickup
2026 GMC Sierra EV vs Rivian R1T
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
The 2026 Rivian R1T is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity, it costs about $1,048 a year to fuel (87 MPGe), versus $1,336 for the 2026 GMC Sierra EV (68 MPGe). That's roughly $289 a year, or about $1,445 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
- GMC Sierra EV
- Rivian R1T
Side by side
| GMC Sierra EV | Rivian R1T | |
|---|---|---|
| $1,336 | Your annual fuel cost | $1,048 |
| 68 MPGe | Combined efficiency | 87 MPGe |
| 75 MPGe | City | 93 MPGe |
| 61 MPGe | Highway | 80 MPGe |
| 49.5 kWh | Electricity use (kWh/100 mi) | 38.8 kWh |
| 410 mi | Driving range | 420 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 |
| 18.6 hrs | Charge time at 240V | 15 hrs |
| Electric | Powertrain | Electric |
| Electricity | Fuel | Electricity |
| Electric motors (511 kW) | Engine / motor | Electric motor (264 kW) |
| Single-speed | Transmission | Single-speed |
| 4WD | Drivetrain | Part-time 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.
GMC Sierra EV vs Rivian R1T across model years
- GMC Sierra EV
- Rivian R1T
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 R1T goes farther between stops: about 420 miles on a charge, compared with 410 miles for the GMC Sierra EV.
Among 21 2026 full-size pickups, the GMC Sierra EV ranks 4th and the Rivian R1T 1st for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2026 GMC Sierra EV or the 2026 Rivian R1T?
Measured by cost to drive, the Rivian R1T. The GMC Sierra EV is rated 68 MPGe combined and the Rivian R1T 87 MPGe (EPA, most efficient configuration of each).
How much does it cost to fuel the 2026 GMC Sierra EV vs. the Rivian R1T per year?
At 15,000 miles a year with 18¢/kWh electricity, about $1,336 for the GMC Sierra EV and $1,048 for the Rivian R1T.
Which has more range?
The Rivian R1T: about 420 miles versus 410 miles.
GMC Sierra EV vs Rivian R1T in other years
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