EV Charging Cost Calculator
How much does it cost to charge an electric car?
Use the sliders to calculate your EV charging costs and see exactly how much you save compared to gas — based on your actual driving habits.
EV charging cost calculator
Adjust the inputs for your vehicle, driving distance, and local electricity rate. Results update instantly.
Tune it to your driving.
Sliders update live. The same math runs inside the WattsNear app's trip-range planner.
per year, vs. driving gas
How is EV charging cost calculated?
EV charging cost depends on three factors: how far you drive, how efficient your vehicle is, and what you pay per kilowatt-hour (kWh). The formula:
Annual cost = (weekly miles ÷ efficiency) × price per kWh × 52 weeks
For example: 200 mi/week ÷ 3.5 mi/kWh = 57.1 kWh/week. At $0.18/kWh × 52 weeks = $534/year.
Home charging in the U.S. averages around $0.13–$0.20/kWh depending on your utility and time-of-use plan. Public Level 2 chargers typically run $0.20–$0.35/kWh. DC fast chargers can reach $0.40–$0.65/kWh.
To minimize charging costs, WattsNear helps you find the cheapest public chargers near you — sorted by $/kWh, powered by the U.S. DOE NREL database.
Find the cheapest chargers near you
Sorted by $/kWh
WattsNear is the only EV app that sorts chargers by estimated price per kWh, not just distance. The cheapest option is always at the top.
Live DOE data
All pricing comes from the NREL alternative fuels database — updated daily, sourced from station operators, not user guesses.
Free & no account
WattsNear is completely free with no sign-up and no ads. Open it and start finding cheaper charging immediately.
Works on CarPlay
See charger prices on your dashboard while driving. WattsNear is a native CarPlay app for iPhone.
Find cheap EV charging near you — download WattsNear free.
Free for iPhone with iOS 18 or later. Also works on CarPlay.
