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EV Charging Cost Calculator
Calculate the cost to charge an electric car at home or at a public charger, per charge, per mile and per month.
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How to use it
- Enter the usable battery capacity (see your car's spec sheet).
- Set the start and target charge level.
- Enter your home rate from your bill, or the public charger's price per kWh.
- Charging losses are typically 10-15% at home (Level 2).
How it works
Energy from the grid = battery × (to − from) ÷ efficiency. Cost = energy × rate. Cost per mile = rate ÷ (miles per kWh × efficiency). The US residential average is roughly 17-18¢ per kWh, while DC fast charging often costs 40-60¢ per kWh.
FAQ
How much does it cost to charge an EV at home?
A 75 kWh battery from 20% to 80% takes about 50 kWh from the wall including losses - around $8.50 at 17¢/kWh.
Is fast charging more expensive?
Usually 2-3× the cost of home charging per kWh, plus some losses; it is best kept for road trips.
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