Cost to Charge a Audi Q4 e-tron in Montana

$12.82 for a full charge at 15.14¢/kWh — $4.45 per 100 miles, about $534 a year.

Audi Q4 e-tron in Montana

$12.82 for a full charge

Per 100 miles: $4.45
Per mile: $0.04
Per year: $534
vs petrol / yr: $1,100

Electricity per year
Petrol per year

The full picture

Charging cost breakdown for a Audi Q4 e-tron
Item	Energy	Cost
This charge	84.7 kWh	$12.82
Full charge (0–100%)	84.7 kWh	$12.82
Per 100 miles	29.4 kWh	$4.45
Per year (12,000 mi)	3528.0 kWh	$534
Same year on petrol (30 mpg)	—	$1,634
Difference	—	$1,100

What charging actually costs here

Filling a Audi Q4 e-tron from empty in Montana costs $12.82. The car draws 84.7 kWh from the wall for a full 288-mile charge, and Montana residential electricity averages 15.14¢ per kWh. That works out at $4.45 per 100 miles, or $0.04 a mile.

Montana is cheaper than average: 15.14¢ against a national mean of 19.42¢, which ranks it 16 of 51 for electricity price. The same car costs $11.10 to fill in Nevada and $44.64 in Hawaii — a 4.0× spread across the country for identical driving.

Against a petrol car doing 30 mpg at $4.09 a gallon, electricity here is 3.1× cheaper per mile: $4.45 versus $13.62 per 100 miles. Over 12,000 miles a year that is $1,100 saved.

Similar EVs in Montana

Charging cost of comparable EVs in Montana
Vehicle	Per 100 mi	Full charge	Per year
Fiat 500e	29.2 kWh	$6.59	$531
Volkswagen ID.4	29.8 kWh	$13.13	$541
BMW i5	28.9 kWh	$14.35	$525
Hyundai Ioniq 5	30 kWh	$14.44	$545
BMW iX	28.6 kWh	$18.79	$520
Nissan Leaf	30.4 kWh	$6.86	$552

The same car in nearby-priced states

Charging a Audi Q4 e-tron in states with similar electricity prices
State	¢/kWh	Full charge	Per year
Washington	14.91	$12.62	$526
New Mexico	15.06	$12.75	$531
Florida	15.10	$12.79	$533
Arizona	15.18	$12.85	$536
Wyoming	15.24	$12.90	$538
South Dakota	15.36	$13.01	$542

Frequently asked questions

How much does it cost to charge a Audi Q4 e-tron in Montana?

$12.82 for a full charge from empty. The car needs 84.7 kWh at the wall and Montana residential electricity averages 15.14¢ per kWh.

How much does a Audi Q4 e-tron cost per mile in Montana?

About $0.04 a mile, or $4.45 per 100 miles. Over 12,000 miles a year that is roughly $534 of electricity.

Is charging a Audi Q4 e-tron cheaper than petrol in Montana?

Yes — 3.1 times cheaper per mile. Electricity costs $4.45 per 100 miles here against $13.62 for a 30 mpg petrol car at $4.09 a gallon, a saving of about $1,100 a year.

How long does a full charge last?

The EPA rates the Audi Q4 e-tron at 288 miles combined. Cold weather, motorway speeds and a loaded car all reduce that; the EPA number is a standardised test, not a guarantee.

Does this include charging losses?

Yes. The EPA's 29.4 kWh/100 mi figure is measured at the wall socket, so the energy lost in the charger and cabling is already in the number. No extra efficiency factor is applied.

Vehicle data: EPA fueleconomy.gov, model years 2025-2027. Electricity: EIA Electric Power Monthly Table 5.6.A, residential, June 2026. Petrol: EIA weekly retail gasoline price, 24 August 2026.

Estimates for informational purposes only. Real charging cost depends on your tariff, time of use, charger efficiency, temperature, driving style and state of charge. EPA figures are a standardised test result, not a promise about your car.