2026 Rivian R1S Fuel Economy

EPA ratings by trim

City and highway are EPA's adjusted label figures; combined is the 55/45 blend printed on the window sticker. For electric and plug-in trims the MPG columns are MPGe, and the kWh per 100 miles is the figure a charging cost actually turns on; EPA measures it at the wall, so charging losses are already in it. Unrounded combined figures, where EPA publishes them: R1S All-Terrain Dual Large (20in) 75.9769; R1S All-Terrain Dual Large Plus (20in) 71.885; R1S All-Terrain Dual Max (20in) 77.976; R1S All-Terrain Performance Dual Max (20in) 77.976; R1S All-Terrain Performance Dual Large (20in) 75.9769; R1S All-Terrain Performance Dual Large Plus (20in) 71.885; R1S All-Terrain Tri Max (20in) 67.6338; R1S Dual Large (20in) 78.6194; R1S Dual Large (22in) 85.3883; R1S Dual Large Plus (20in) 78.1589; R1S Dual Large Plus (22in) 82.4024; R1S Dual Max (20in) 80.3018; R1S Dual Max (22in) 84.3922; R1S Dual Standard (20in) 78.6245; R1S Dual Standard (22in) 84.5046; R1S Performance Dual Large (20in) 78.6194; R1S Performance Dual Large (22in) 85.3883; R1S Performance Dual Large Plus (20in) 78.1589; R1S Performance Dual Large Plus (22in) 82.4024; R1S Performance Dual Max (20in) 80.3018; R1S Performance Dual Max (22in) 84.3922; R1S Quad Max (20in AT) 67.2718; R1S Quad Max (22in UHP) 71.1878; R1S Quad Max (22in) 75.9604; R1S Tri Max (22in) 75.6197.

What the rating costs per mile

The rating divided by a price, times your miles. It starts at EIA's current U.S. averages and EPA's 15,000 miles so the right-hand column is comparable; type your own pump price, home rate and mileage over them.

Fuel only — before depreciation, insurance, maintenance or tires, which the True Cost per Mile Calculator adds. Most drivers land below the rating; the True MPG Calculator measures your own from two fill-ups. The EV vs. Gas Cost Calculator sets the electric trim against a gasoline one over a year.

EPA's own figures, and why they differ

The “EPA's figure” column is EPA's annual fuel cost from the same file: 15,000 miles, 55% city, and the national fuel price fueleconomy.gov was using on the day the file was built (2026-09-29). fueleconomy.gov recomputes its page every week at the current price, so its number and the file's drift apart between file dates; the middle columns here use a price you can see and change, which is the only honest way to compare two cars. EPA also prints a five-year “you save/spend” against the average new vehicle (saves $7,500 for the R1S Dual Large (22in)); it rests on the same assumptions and is not repeated here as a result.

Every figure on this page is a rating, not a measurement of any particular car. The site never calls a rating wrong; it shows what your own price and miles do to it. See the model on fueleconomy.gov.

Other model years of the Rivian R1S: 2027, 2025, 2024, 2023, 2022.