What it costs to charge a 2026 Rivian R1S All-Terrain Dual Large (20in) in Oklahoma

A 2026 Rivian R1S All-Terrain Dual Large (20in) draws 44.4 kWh per 100 miles per the EPA; at Oklahoma's 13.37¢/kWh residential rate that's $5.93 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 63% cheaper per mile than gasoline in Oklahoma — charging at home is much cheaper than gas here.

2026 Rivian R1S All-Terrain Dual Large (20in): yearly cost in Oklahoma

Home charging this 2026 Rivian R1S All-Terrain Dual Large (20in) in Oklahoma runs about $890 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,513 saved annually, at this mileage.

What one full charge costs

$17.14 — that's what Oklahoma's 13.37¢/kWh rate puts on the 128.2 kWh a 2026 Rivian R1S All-Terrain Dual Large (20in) needs for its full 289-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S All-Terrain Dual Large (20in) in Oklahoma ranks 9,080 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S All-Terrain Dual Large (20in) ranks 344 of 400 EV models for raw efficiency, and Oklahoma ranks 5 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 Rivian R1S All-Terrain Dual Large (20in) at home

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

Ask a licensed Oklahoma electrician to quote the install before this math becomes a real decision.

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Oklahoma is one of the cheapest states for home electricity — the guide to why the cost varies so much by state covers what drives that.