EV Charging Cost Calculator: Understanding Your Real Expenses

EV charging costs have gotten complicated with all the rate structures, efficiency variables, and comparison claims flying around. As someone who tracks every charging dollar, I learned everything there is to know about what EV charging actually costs. Today, I will share it all with you.

The Basic Math

Probably should have led with this section, honestly—the core calculation is simple:

Cost = (Miles driven ÷ Efficiency) × Electricity rate

Average EV efficiency: 3-4 miles per kWh
Average electricity rate: $0.10-0.15/kWh (varies by utility)
Result: roughly $0.03-0.05 per mile

Real Numbers Example

Drive 1,000 miles monthly at 3.5 miles/kWh = 286 kWh needed
At $0.12/kWh = $34 monthly
Compare to 30 MPG gas car at $4/gallon = $133 monthly

That’s what makes EV charging endearing to us budget-conscious drivers—roughly 70% savings versus gasoline.

Optimizing Costs

• Off-peak charging: Many utilities offer 30-50% lower rates overnight
• Smart chargers: Automate off-peak scheduling
• Solar: Free fuel once panels are paid off

Track your actual costs with your smart charger app or separate energy monitor. Real data beats estimates.