EV vs Gas Vehicle Costs in Montana
What fuel costs a driver in Montana, from Montana's own electricity and gasoline prices.
Gas fuel, per year
$2,204
EV electricity, per year
$844
Fuel difference, per year
$1,360
Per mile, EV vs gas
5.6¢ vs 14.7¢
What these fuel costs rest on
- Driving: 15,000 miles a year, the basis of the EPA fuel economy label.
- Electricity: 14.99 cents per kWh, Montana residential average, 2026-07 (U.S. Energy Information Administration, Electric Power Monthly).
- Gasoline: $3.27 a gallon for 2025, all grades. The state price is derived from EIA's state price file and its national annual price.
- Efficiency: the average of 818 EPA-rated electric trims (37.5 kWh per 100 miles) and 1,447 EPA-rated gas trims (22.2 mpg), the three newest EPA model years. A simple average over trims, not weighted by sales.
The federal clean vehicle credit ended for vehicles acquired after September 30, 2025 (IRS); state and local programs are not listed here. Purchase price, insurance and resale value decide the total cost, and EPA publishes none of them, so the calculator asks you for them.
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Yellowstone CountyGallatin CountyMissoula CountyFlathead CountyCascade CountyLewis and Clark CountyRavalli CountySilver Bow CountyLake CountyLincoln CountyPark CountyHill CountyGlacier CountyBig Horn CountySanders CountyJefferson CountyCuster CountyFergus CountyRichland CountyRoosevelt CountyCarbon CountyBeaverhead CountyDeer Lodge CountyStillwater County