Rivian is rated 80.5 MPGe across 2 models (2022–2026) — 41.9 kWh per 100 miles, or about $855 a year at the plug. The best on record manages 87 MPGe, the heaviest drinker 69. Gas mileage is the wrong question here: none of these cars takes petrol.
What that actually costs
What a Rivian costs to charge, at 12,000 miles a year and $0.17 a kilowatt-hour — the pump price never enters into it.
| Measure | Value |
|---|---|
| Average rating | 80.5 MPGe |
| Energy use | 41.9 kWh per 100 miles |
| Charging per year | $855 |
| Most efficient on record | 87 MPGe — $789 a year |
| Heaviest drinker | 69 MPGe — $996 a year |
Rivian models by MPGe
Every Rivian is rated in MPGe — the distance it covers on 33.7 kWh, the energy in one gallon of petrol. The bill below is electricity at $0.17 a kWh, not fuel at the pump.
| Model | MPGe | kWh / 100 mi | Charging per year |
|---|---|---|---|
| Rivian R1T | 41.5 | $847 | |
| Rivian R1S | 42.2 | $861 |
MPG is a number. Dollars per year is the answer.
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How we count
Rivian rests on 10 EPA ratings covering 2 models from 2022 to 2026, plus 2 electric ones counted separately in MPGe. The laboratory numbers are EPA's and go in unchanged; the money is ours, at 12,000 miles a year and $0.17 a kilowatt-hour. Full method.
Frequently asked questions
What is the average Rivian rating?
80.5 MPGe combined across 2 models and 10 EPA ratings, from 2022 to 2026 — 4 model years in one figure, which is why it sits below what a new Rivian does today.
Which Rivian model is the most economical?
We don't have a per-model breakdown for this marque.
How much does a Rivian cost to run?
About $855 a year to charge, at 12,000 miles and $0.17 a kilowatt-hour. Over five years that is $4,275, before a single service.
What is Rivian's MPGe, and why not mpg?
80.5 MPGe on average. MPGe measures how far the car goes on 33.7 kWh — the energy held in one gallon of petrol — because Rivian builds nothing that burns any. In electricity that is 41.9 kWh per 100 miles, about $855 a year.
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