Home vs Public Charging

EV Charging Cost Calculator

See exactly what charging your EV really costs per month — using your own electricity rate, not a national average.

✓ Last verified: July 28, 2026

Your Vehicle & Driving

Battery Size (kWh)

Efficiency (miles/kWh)

Monthly Miles Driven

Charging Rates

Home Rate ($/kWh)

Check your utility bill — national average is ~$0.16/kWh

Public DC Fast Rate ($/kWh)

Public fast charging averages ~$0.40–0.48/kWh

% of Charging Done at Home

Why Home Charging Is Usually Cheaper

Public DC fast chargers typically cost 2–3x more per kWh than home electricity, because you're paying for speed and the charging network's infrastructure. Charging at home overnight — especially on a time-of-use utility plan — is almost always the cheapest way to run an EV. Many utilities offer a discounted overnight EV rate; check your state's page on this site for utility-specific programs.