EV Cost Per Mile Calculator
What every mile really costs in an electric car.
Enter your values
Enter the electricity price in $/kWh.
Enter the efficiency in mi/kWh.
Enter the charging efficiency in %.
Enter the annual mileage in mi.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Cost per mile
- $0.05
- Cost per 100 miles
- $5.08
- Annual electricity cost
- $609.52
- kWh per year
- 3,810 kWh
- Equivalent MPG at $3.50/gal
- 69 mpg
Quick answer
Cost per mile = electricity price ÷ (miles per kWh × charging efficiency). Charging losses of 8–12% must be included because you pay for grid energy, not battery energy.
Cost/mile = price per kWh ÷ (mi/kWh × efficiency)
At a glance
| What it does | What every mile really costs in an electric car. |
|---|---|
| Category | Auto |
| Inputs needed | Electricity price, Efficiency, Charging efficiency, Annual mileage |
| Main output | Cost per mile |
| Formula | Cost/mile = price per kWh ÷ (mi/kWh × efficiency) |
| Cost | Free — no sign-up, no download |
How to use the EV Cost Per Mile Calculator
- 1Enter what you pay per kWh, including standing charges if you want a true figure.
- 2Enter your car's real-world miles per kWh from the trip computer.
- 3Add your annual mileage to see the yearly cost.
Inputs explained
- Electricity price($/kWh)
- Enter the electricity price in $/kWh.
- Efficiency(mi/kWh)
- Enter the efficiency in mi/kWh.
- Charging efficiency(%)
- Enter the charging efficiency in %.
- Annual mileage(mi)
- Enter the annual mileage in mi.
Worked example
Using the values the calculator loads with:
Inputs
- Electricity price0.16 $/kWh
- Efficiency3.5 mi/kWh
- Charging efficiency90 %
- Annual mileage12000 mi
Results
- Cost per mile$0.05
- Cost per 100 miles$5.08
- Annual electricity cost$609.52
- kWh per year3,810 kWh
- Equivalent MPG at $3.50/gal69 mpg
Frequently asked questions
What is a good mi/kWh figure?
Compact EVs manage 4.0–4.5 mi/kWh, mid-size sedans 3.3–3.8 and electric trucks or SUVs 2.0–2.5 in mixed driving.
Should I include charging losses?
Yes. AC home charging is typically 85–92% efficient, so you buy roughly 10% more energy than the battery actually stores.
What do I need to enter into the EV Cost Per Mile Calculator?
Just 4 values: electricity price, efficiency, charging efficiency, annual mileage. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the EV Cost Per Mile Calculator work out the answer?
Cost per mile = electricity price ÷ (miles per kWh × charging efficiency). Charging losses of 8–12% must be included because you pay for grid energy, not battery energy. It applies the formula Cost/mile = price per kWh ÷ (mi/kWh × efficiency) and shows the working so you can check each step by hand.
Is the EV Cost Per Mile Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.