EV Charging Cost Calculator
What does it cost to “fill up” an EV? Enter your miles and efficiency to get the charging cost — and how much you save versus gas.
Home EV chargers and charging apps
Learn moreCents per mile, not dollars per gallon
EVs are cheapest to fuel at home, where electricity is steady and inexpensive. The fair comparison is cost per mile: divide your rate by efficiency for the EV, and gas price by MPG for a gas car. Home charging usually lands around a third of the cost of gas.
How it’s calculated & sources
Electricity used = miles ÷ efficiency (mi/kWh). EV cost = kWh × rate. Gas cost = miles ÷ MPG × gas price. The difference is your savings.
Benchmark: home EV charging typically costs ~4–5¢/mile versus ~12–15¢/mile for gas at $3.50/gallon (U.S. DOE).
Results update as you type and are general estimates, not personalized financial, tax, medical or legal advice. Verify with a professional.
Worked example
1,000 miles at 3.5 mi/kWh and 17¢/kWh is about $49 to charge — versus roughly $117 of gas in a 30-mpg car. You save about $68.
Frequently asked questions
What about public fast charging?
DC fast charging costs more — often 2–4× home rates — so road-trip charging narrows the gap. Raise the rate to model it.
Does cold weather change this?
Yes — efficiency drops in cold weather, so winter cost per mile rises. Lower the mi/kWh figure to see the effect.