How much does it cost to charge an EV at home?
How much does it cost to charge an electric car at home? Pick your state and your car: the answer is in dollars per 100 miles, per month and per year, from public electricity prices and car energy ratings.
State prices are the average residential prices in EIA's Electric Power Monthly for July 2026.
Energy use per 100 miles comes from the EPA fuel economy ratings; each car's page links its source.
Where home charging is cheapest and dearest
Cheapest
- Louisiana 12.72¢ per kWh
- Nevada 12.77¢ per kWh
- Utah 13.12¢ per kWh
- North Dakota 13.41¢ per kWh
- Tennessee 13.71¢ per kWh
Most expensive
- Hawaii 48¢ per kWh
- California 33.61¢ per kWh
- Maine 32.41¢ per kWh
- Massachusetts 30.49¢ per kWh
- New York 29.9¢ per kWh
See all 51 places ranked or compare 12 popular cars. The calculator starts on Texas and the 2025 Tesla Model 3 Long Range RWD, which comes to $3.97 per 100 miles.
How the figure is worked out
Cost per 100 miles is the car's energy use in kWh per 100 miles multiplied by the state's price per kWh. The month and year figures scale it to the miles you enter; the page starts at 12,000 miles a year.
It is a state average. Your own bill depends on your utility, your rate plan and when you charge, so treat the result as a starting point and read the method page for what it leaves out.