What it costs to charge a 2027 Rivian R1S Premium (20in) in Missouri

At Missouri's residential electricity rate of 13.45¢/kWh, a 2027 Rivian R1S Premium (20in) (rated 42.9 kWh per 100 miles by the EPA) costs $5.77 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. That works out to 64% cheaper per mile than gasoline in Missouri — charging at home is much cheaper than gas here.

2027 Rivian R1S Premium (20in): yearly cost in Missouri

Home charging this 2027 Rivian R1S Premium (20in) in Missouri runs about $865 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,538 saved annually, at this mileage.

Cost of a full charge

$17.3 — that's what Missouri's 13.45¢/kWh rate puts on the 128.6 kWh a 2027 Rivian R1S Premium (20in) needs for its full 300-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Premium (20in) in Missouri ranks 8,306 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Premium (20in) ranks 314 of 400 EV models for raw efficiency, and Missouri ranks 7 of 51 for cheapest residential electricity.

Next step: home charger installation

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.

Line up a few Missouri electrician quotes for Level 2 install before you commit either way.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how Missouri's 13.45¢/kWh compares? The guide to charging cost by state ranks every state side by side.