2026 Rivian R1S All-Terrain Tri Max (20in): home charging cost in Missouri

At Missouri's residential electricity rate of 13.45¢/kWh, a 2026 Rivian R1S All-Terrain Tri Max (20in) (rated 49.8 kWh per 100 miles by the EPA) costs $6.7 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. Charging at home is much cheaper than gas here: 58.2% less than gas per mile, here specifically.

2026 Rivian R1S All-Terrain Tri Max (20in): yearly cost in Missouri

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Rivian R1S All-Terrain Tri Max (20in) charged at home in Missouri costs about $1,005/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,398 a year.

Cost of a full charge

A 2026 Rivian R1S All-Terrain Tri Max (20in) needs roughly 164 kWh to reach its EPA-rated 329-mile range, which runs about $22.05 at 13.45¢/kWh in Missouri.

How this compares nationally

This combination ranks 12,163 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S All-Terrain Tri Max (20in) alone ranks 388 of 400 models for efficiency; Missouri alone ranks 7 of 51 states for electricity price.

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

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

Get quotes from local electricians for Level 2 charger installation in Missouri before deciding.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 13.45¢/kWh, Missouri sits in the middle of the national range — the guide to why charging cost varies by state shows where.