How much does it cost to charge per mile?

Divide the cost of a full charge by the range it gives. For a car doing 3.5 miles per kWh on a 75 kWh battery at 17 cents per kWh, that is about 5 cents per mile, much less than a gas car.

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EV Charging Cost Calculator

An EV charging cost calculator tells you what it costs to charge an electric car. It takes the battery size, your electricity rate, and the charging loss, and returns the cost of a full charge, the cost per mile, and the cost per year. Compare charging at home against a public fast charger. Everything runs in your browser, with no signup.

Updated for 2026

Your car and rate

Set where you charge, then adjust to match your car.

Where you charge

Battery size

kWh

Efficiency

mi / kWh

Electricity rate

$/ kWh

Charging loss

Miles per year

Full charge

Cost per mile

Cost per 100 miles

Range per charge

0 mi

Energy from wall

0 kWh

Cost per year

Cost per month

Same charge at home (17 cents)$0

Same charge in public (45 cents)$0

Cost of a full charge by battery size

What a full charge costs at your rate of 17 cents per kWh, including a 10 percent charging loss. Change the rate above and these update instantly.

Battery size	Energy from wall	Cost per charge	Range

How the charging cost is calculated

Charging is not perfectly efficient, so you draw more energy from the wall than ends up in the battery. The cost of a full charge is the energy from the wall times your rate:

Cost per charge = ( Battery kWh ÷ Charging efficiency ) × Rate per kWh

where charging efficiency is one minus the loss, so a 10 percent loss is an efficiency of 0.90. The cost per mile is the cost of a full charge divided by the range, and the range is the battery size times the cars miles per kWh.

Worked example (Stand: 2026)

Battery size75 kWh
Charging loss10% (efficiency 0.90)
Energy from wall (75 ÷ 0.90)83.3 kWh
Electricity rate$0.17 / kWh
Cost per full charge$14.17
Range (75 × 3.5 mi/kWh)263 mi
Cost per mile$0.054
Cost per year (12,000 mi)$648

Frequently asked questions

How much does it cost to charge an electric car?

At home, usually a few dollars. A 75 kWh battery draws about 83 kWh from the wall after losses, about 14 dollars at 17 cents per kWh, for roughly 260 miles of range. Enter your own car and rate above for an exact figure.

Is it cheaper to charge at home or in public?

Home is far cheaper. Home power is about 17 cents per kWh, while public DC fast chargers often run 40 to 50 cents per kWh, so the same charge can cost two to three times more in public. The bars above show the difference for your car.

Why is the energy from the wall higher than the battery size?

Some energy is lost as heat in the charger, cables, and battery, usually around 10 percent. To put 75 kWh into the battery you draw about 83 kWh from the wall and pay for all of it.

How much does charging cost per mile?

Divide the cost of a full charge by the range it gives. A car doing 3.5 miles per kWh at 17 cents per kWh works out around 5 cents per mile, far below a gas car.

Does this calculator store my numbers?

No. Everything is calculated in your browser. Nothing you enter is sent to a server or saved.

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