How Much Does It Cost to Charge an EV at Home?

Updated September 22, 2026. Examples are planning scenarios; they are not measured performance claims for particular vehicle models.

Home charging cost depends on the electricity actually purchased, the distance driven, and the applicable tariff. Battery capacity alone cannot establish a monthly bill. A larger battery can mean fewer charging sessions without changing the energy required to drive the same distance.

Use the right consumption measurement

Charging cost = distance ÷ 100 × wall-meter kWh per 100 miles × price per kWh.

If consumption comes from a wall meter, charging losses are already included. If it comes from the vehicle's battery display, divide battery energy by charging efficiency. For example, 300 kWh delivered to the battery at an assumed 90% efficiency requires about 333.33 kWh from the wall. At $0.20/kWh that costs $66.67, compared with $60 if losses were omitted.

Use consumption for your actual trim, driving conditions, and season. A single owner-reported value or a different model year's battery specification should not be presented as a universal vehicle rating. Cold-weather heating, highway speeds, payload, and short trips can change energy demand.

A reference rate, not your tariff

The stored U.S. residential average is 18.34¢/kWh for June 2026. Source: EIA Electric Power Monthly, Table 5.6.A, released 2026-08-26, checked 2026-09-22. These are preliminary monthly averages, not utility offers or a forecast. This snapshot does not update automatically.

The full state table uses the same source as the calculators. Your delivered tariff is the better input: include per-kWh generation and delivery charges, and handle fixed fees separately. A state monthly average is not a guaranteed overnight rate.

The four consumption levels above are illustrative wall-meter inputs. They do not represent a ranking of named vehicles. At a chosen rate of $0.20/kWh, 1,000 miles at 30 kWh per 100 miles costs $60. At $0.35/kWh, the same distance and consumption costs $105.

Combine home and public charging without double counting

Suppose you drive 1,200 miles per month and purchase 30 kWh per 100 miles. Total electricity is 360 kWh. With 80% charged at home for an assumed $0.20/kWh and 20% at public chargers for $0.45/kWh:

• Home: 288 kWh × $0.20 = $57.60.
• Public: 72 kWh × $0.45 = $32.40.
• Total: $90 per month, before any session, parking, membership, or idle fees.

All-home charging would cost $72; all-public charging at the example price would cost $162. If your charging network bills by time, convert expected charging time and all additional charges into a trip cost rather than applying a flat energy price alone.

Compare a TOU plan across the whole home

Assume a plan reduces 300 kWh of monthly EV charging from $0.20 to $0.10/kWh. That saves $30. If the same plan increases 400 kWh of other household consumption by $0.05/kWh and adds a $10 monthly fee, those extra costs use up the entire charging saving.

These are sample tariffs, not current utility offers. Obtain the utility's full tariff, including season, weekends, holidays, tiers, and fixed fees. Scheduling charging helps only when the car is connected during the cheaper window and enough energy can be delivered before departure.

Compare gasoline on the same mileage

At 1,200 miles and 30 mpg, a gas car uses 40 gallons. At a chosen $3.60/gallon, that is $144. Against the mixed-charging example of $90, the EV saves $54 per month in energy. Against $162 for public-only charging, it costs $18 more.

Fuel savings are only one part of ownership cost. Keep purchase price, insurance, depreciation, maintenance, and charger installation separate. If solar supplies charging, count the electricity's avoided grid purchase once and account for export credits forgone.

Inputs to collect before calculating

Use monthly mileage, seasonal consumption measured at the wall or an explicitly adjusted battery value, your current tariff, public charging receipts, and the expected home/public split. For installation costs, obtain an electrician's quote that includes panel capacity, wiring distance, permits, and equipment.

The EV Charging Calculator lets you compare charging shares. The EV vs Gas Calculator adds modeled purchase and maintenance costs. Recalculate with a winter consumption estimate and a higher public charging share to see whether the decision changes.

Correction: This revision removes the unsupported 14.5¢ national-average claim and unverified model-specific real-world tables. The current reference rate comes from the shared EIA snapshot, while all cost examples state their assumptions.