ECC
$0.1834U.S. residential average · approximate · editable

EV · Home charging

Estimate home EV charging cost.

Convert driving distance and vehicle consumption into wall energy, including charging losses.

For a tariff calculation, include both supply and delivery charges per kWh. A state average includes revenue from fixed charges and taxes; do not add these again when using an average.Use your delivered electricity price, or keep the approximate average.
Use your odometer history, service records, lease allowance, or driving app to estimate miles driven per year.
Find kWh per 100 miles on the vehicle display, EPA efficiency label, or manufacturer specification.
Consumption source
EPA label values already include wall-to-vehicle charging losses.
Checking the ECC API…

Annual charging cost

$660.24/year

Monthly charging cost

$55.02/month

Wall energy

3600kWh/year

12000 miles per year at 30 kWh/100mi requires 3600 kWh from the wall; the EPA label value already includes charging losses.

That's $0.0550 per mile in electricity

Source: Manual rate · June 2026 monthly average · User-provided calculation input · selected rate source: Government aggregate · approximate

Distance is supplied for the full analysis year. · The supplied consumption is wall-side energy, so charging losses are already included and are not applied again. · Costs apply the supplied manual flat rate uniformly to daily, average-monthly, and annual energy.