EV Charge Charging a Tesla Model 3 at home in Montana costs about $46 per 1,000 miles, or $0.046 per mile, at the state’s average residential rate of 15.57¢ per kWh (August 2026). A full charge from empty runs about $14.23.
Montana ranks #33 of 51 for electricity prices (1 = most expensive), so this is below the U.S. average of $54 per 1,000 miles for the same car. A 30-mpg gas car would spend about $144 on fuel for those 1,000 miles at Montana’s $4.33 a gallon, so home charging saves roughly $98 every 1,000 miles.
Home charging vs Supercharger vs gas in Montana
| Option | Price | Per 1,000 miles | Per year |
|---|---|---|---|
| Home, standard rate | 15.57¢/kWh | $46 | $553 |
| Tesla Supercharger (non-member avg.) | $0.59/kWh | $176 | $2,109 |
| Gas car, 30 mpg | $4.33/gal | $144 | $1,732 |
On a Supercharger the same 1,000 miles cost $176, $130 more than at home. That’s even more than gas.
Cost by electric utility in Montana
| Utility | Est. rate | 1,000 miles (Tesla Model 3) | Full charge |
|---|---|---|---|
| NorthWestern Energy | 17.50¢ | $52 | $16.00 |
| Fergus Electric Coop | 19.08¢ | $56 | $17.44 |
| Montana-Dakota Utilities | 15.85¢ | $47 | $14.49 |
| Yellowstone Valley Elec -op | 16.41¢ | $49 | $15.00 |
| Missoula Electric Coop | 12.92¢ | $38 | $11.81 |
Tesla Model 3 vs other EVs in Montana
| EV | kWh/100 mi (EPA) | Per 1,000 miles |
|---|---|---|
| Tesla Model Y | 27.5 | $43 |
| Tesla Model 3 | 29.6 | $46 |
| Hyundai Ioniq 5 | 31.7 | $49 |
| Chevrolet Equinox EV | 32.6 | $51 |
| Ford Mustang Mach-E | 33.6 | $52 |
| Kia EV9 | 43.0 | $67 |
| Rivian R1S | 44.4 | $69 |
| Ford F-150 Lightning | 47.9 | $75 |
Tesla Model 3 charging cost in states near Montana
| State | ¢/kWh | Per 1,000 miles |
|---|---|---|
| North Dakota | 13.31 | $39 |
| Idaho | 13.37 | $40 |
| Wyoming | 14.43 | $43 |
| South Dakota | 15.15 | $45 |
| Montana | 15.57 | $46 |
Frequently asked questions
How much does it cost to fully charge a Tesla Model 3 in Montana?
About $14.23 from empty to full at home, using Montana’s average rate of 15.57¢ per kWh and the EPA rating of 29.6 kWh per 100 miles over a 309-mile range. Topping up from 20% to 80% costs roughly $8.54.
Is it cheaper to charge a Tesla Model 3 than to buy gas in Montana?
Yes at home: $46 vs $144 per 1,000 miles for a 30-mpg car. At a Supercharger it is not: $176 per 1,000 miles.
How much does a Tesla Model 3 add to an electric bill in Montana?
Driving 1,000 miles a month adds about $46 to a Montana electric bill, or $46 a month at 12,000 miles a year.
How can I charge a Tesla Model 3 cheaper in Montana?
Charge at home overnight, and ask your utility for a time-of-use or EV plan: off-peak prices are often well below the average rate used here. See our time-of-use guide.
More: EV charging cost in Montana · cost to charge a Tesla Model 3 in every state · EV charging cost calculator.
Cost to charge a Tesla Model 3 in other states
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- District of Columbia
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
- All 50 states for the Tesla Model 3
Sources: EIA Electric Power Monthly (August 2026); fueleconomy.gov (EPA, Model 3 Performance); DCFC Tracker (Superchargers); EIA gasoline prices. Method: how we calculate.
