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Cost to charge a 2027 Audi A6 e-tron quattro ultra in Idaho

At 13.73¢ per kilowatt-hour — Idaho's average residential price in July 2026 — a full charge costs $14.21 and a year of driving costs $473. That is 25% less than the national average of $631.

Per mile
3.9¢
Full charge
$14.21
Per month
$39.41
Per year
$473

Assumptions: 12,000 miles a year, home Level 2 charging, and EPA combined consumption measured at the wall (so charging losses are already included). Gasoline comparison uses $3.50 a gallon at 30 MPG. Change any of these in the calculator.

Against a gasoline car in Idaho

Charging at home saves $927 a year against a 30 MPG gasoline car at $3.50 a gallon.

Electricity
3.9¢/mi
Gasoline
11.7¢/mi
Per year, EV
$473
Per year, gas
$1,400

Fuel only. Insurance, maintenance, tires, depreciation and any purchase incentives are outside this comparison, and they can easily be larger than the fuel difference.

How Idaho compares

Idaho has the 6th cheapest residential electricity in the country, which puts a full charge at $14.21 here against $13.17 in Louisiana and $49.68 in Hawaii.

StateRateFull chargePer year
North Dakota13.41¢$13.88$462
Tennessee13.71¢$14.19$472
Idaho13.73¢$14.21$473
Nebraska13.78¢$14.26$475
Kentucky13.81¢$14.29$476

Similar running costs in Idaho

Charging it for less in Idaho

Questions

How much does it cost to fully charge a 2027 Audi A6 e-tron quattro ultra in Idaho?
About $14.21, drawing roughly 103.5 kWh from the wall at 13.73¢/kWh.
What does it cost per mile?
About 3.9¢ per mile on electricity, against roughly 11.7¢ per mile for a 30 MPG gasoline car at $3.50 a gallon.
How far does a 2027 Audi A6 e-tron quattro ultra go on a charge?
EPA rates it at 360 miles of combined range.