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EV Charging Cost Calculator

Cost per charge, per mile, and versus petrol.

Enter your values

ⓘ Live results

Results
Cost of a full charge
$13.33
Cost per mile
$0.0494
Petrol equivalent per mile
$0.115
Saving per 1,000 miles
$65.62
Effective MPG-equivalent
69.9

Quick answer

EV charging cost is battery kWh × electricity price ÷ charging efficiency; per-mile cost is that divided by range.

How to use the EV Charging Cost Calculator

  1. 1Enter your battery size and range.
  2. 2Add your electricity rate.
  3. 3Compare against a petrol car's mpg.

Worked example

Using the values the calculator loads with:

Inputs

  • Battery capacity75 kWh
  • Electricity price0.16 $/kWh
  • Range on a full charge270 miles
  • Comparison petrol car30 mpg
  • Petrol price3.45 $/gal

Results

  • Cost of a full charge$13.33
  • Cost per mile$0.0494
  • Petrol equivalent per mile$0.115
  • Saving per 1,000 miles$65.62
  • Effective MPG-equivalent69.9

Frequently asked questions

Why divide by 0.9?

Charging loses roughly 10% to heat and conversion, so the meter records more energy than the battery gains.

Is rapid charging more expensive?

Yes, often two to four times the home rate, which is why most owners charge at home overnight.

About this calculator

Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.