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Electricity rates: EIA average residential prices, July 2026. Gas price: AAA national average (Oct 2026). Vehicle figures are approximate; enter your own for best results. Time-of-use plans can lower your cost.
How Much Does It Cost to Charge an EV at Home?
The cost to charge an electric car at home depends on three things: your electricity rate, how efficient your EV is, and how many miles you drive. With the U.S. average residential rate of about 18.3¢ per kWh, a typical EV that uses 30 kWh per 100 miles costs around $6 per 100 miles, or about $60 per month for 1,000 miles of driving.
EV Charging Cost Formula
Cost = (miles ÷ 100) × kWh per 100 miles × electricity rate ÷ charging efficiency
Some energy is lost as heat while charging, usually around 10% on a Level 2 charger and more on a standard 120-volt outlet. That's why the calculator includes a charging efficiency setting.
Cost to Charge an EV by State
Estimated home charging cost for an EV using 30 kWh per 100 miles, driving 1,000 miles per month, with 90% charging efficiency. Rates are EIA residential averages for July 2026.
| State | Rate (¢/kWh) | Per 100 miles | Per month |
|---|---|---|---|
| Alabama | 16.40 | $5.47 | $55 |
| Alaska | 28.83 | $9.61 | $96 |
| Arizona | 15.38 | $5.13 | $51 |
| Arkansas | 14.33 | $4.78 | $48 |
| California | 33.61 | $11.20 | $112 |
| Colorado | 17.00 | $5.67 | $57 |
| Connecticut | 24.16 | $8.05 | $81 |
| Delaware | 18.48 | $6.16 | $62 |
| Florida | 15.03 | $5.01 | $50 |
| Georgia | 16.27 | $5.42 | $54 |
| Hawaii | 48.00 | $16.00 | $160 |
| Idaho | 13.73 | $4.58 | $46 |
| Illinois | 19.22 | $6.41 | $64 |
| Indiana | 16.73 | $5.58 | $56 |
| Iowa | 15.99 | $5.33 | $53 |
| Kansas | 15.27 | $5.09 | $51 |
| Kentucky | 13.81 | $4.60 | $46 |
| Louisiana | 12.72 | $4.24 | $42 |
| Maine | 32.41 | $10.80 | $108 |
| Maryland | 21.41 | $7.14 | $71 |
| Massachusetts | 30.49 | $10.16 | $102 |
| Michigan | 23.05 | $7.68 | $77 |
| Minnesota | 17.45 | $5.82 | $58 |
| Mississippi | 14.54 | $4.85 | $48 |
| Missouri | 16.09 | $5.36 | $54 |
| Montana | 14.99 | $5.00 | $50 |
| Nebraska | 13.78 | $4.59 | $46 |
| Nevada | 12.77 | $4.26 | $43 |
| New Hampshire | 26.60 | $8.87 | $89 |
| New Jersey | 25.19 | $8.40 | $84 |
| New Mexico | 16.09 | $5.36 | $54 |
| New York | 29.90 | $9.97 | $100 |
| North Carolina | 15.16 | $5.05 | $51 |
| North Dakota | 13.41 | $4.47 | $45 |
| Ohio | 19.45 | $6.48 | $65 |
| Oklahoma | 14.35 | $4.78 | $48 |
| Oregon | 15.97 | $5.32 | $53 |
| Pennsylvania | 21.72 | $7.24 | $72 |
| Rhode Island | 28.29 | $9.43 | $94 |
| South Carolina | 15.47 | $5.16 | $52 |
| South Dakota | 15.37 | $5.12 | $51 |
| Tennessee | 13.71 | $4.57 | $46 |
| Texas | 15.88 | $5.29 | $53 |
| Utah | 13.12 | $4.37 | $44 |
| Vermont | 23.75 | $7.92 | $79 |
| Virginia | 17.55 | $5.85 | $59 |
| Washington | 14.71 | $4.90 | $49 |
| West Virginia | 15.78 | $5.26 | $53 |
| Wisconsin | 19.06 | $6.35 | $64 |
| Wyoming | 14.36 | $4.79 | $48 |
How to Lower Your EV Charging Cost
- Use a time-of-use (TOU) plan. Many utilities offer much cheaper rates at night. Schedule charging in your car's app or your smart charger.
- Ask about EV rates and rebates. Some utilities have special EV plans and rebates for Level 2 chargers.
- Charge with Level 2. A 240-volt charger usually wastes less energy than a 120-volt outlet.
- Add solar. If you have solar panels, charging during the day can cost almost nothing.
Frequently Asked Questions
How much does it cost to fully charge an electric car at home?
Multiply your battery size in kWh by your electricity rate and divide by charging efficiency. For example, a 75 kWh battery at 18 cents per kWh with 90% efficiency costs about $15 for a full charge from empty. Most drivers charge from 20% to 80%, which costs less.
Is it cheaper to charge an EV than to buy gas?
In most states, yes. At average U.S. electricity and gas prices, charging at home usually costs about half or less of what a similar gas car spends on fuel per mile. Use the calculator to compare with your own numbers.
How much will an EV add to my electric bill?
Driving 1,000 miles per month in a typical EV uses roughly 300 to 350 kWh. At the U.S. average rate, that adds about $55 to $70 per month to your electric bill.
What is the cheapest time to charge an EV?
If your utility has a time-of-use plan, overnight off-peak hours are usually the cheapest. Check your utility's rate schedule and set your car or charger to start charging when off-peak prices begin.
Is home charging cheaper than public charging?
Yes, in most cases. Public DC fast charging often costs two to three times more per kWh than charging at home, although some networks offer memberships that lower the price.