EV vs Gas Cost Calculator
Compare fueling costs of an electric vs gas car.
Enter your values
Enter the miles driven per year you are working with.
Enter the gas car mpg you are working with.
Enter the gas price per gallon you are working with.
Enter the ev efficiency in mi/kWh.
Enter the electricity price per kwh you are working with.
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.
- Annual EV savings
- $985.71
- Gas car annual fuel cost
- $1,500.00
- EV annual charging cost
- $514.29
- 10-year savings estimate
- $9,857.14
Quick answer
The comparison converts miles driven into either gallons of gas or kWh of electricity, then multiplies by local prices.
gas cost = (miles / mpg) x gas price; ev cost = (miles / miles-per-kWh) x electricity price
At a glance
| What it does | Compare fueling costs of an electric vs gas car. |
|---|---|
| Category | Auto |
| Inputs needed | Miles driven per year, Gas car MPG, Gas price per gallon, EV efficiency, Electricity price per kWh |
| Main output | Annual EV savings |
| Formula | gas cost = (miles / mpg) x gas price; ev cost = (miles / miles-per-kWh) x electricity price |
| Cost | Free — no sign-up, no download |
How to use the EV vs Gas Cost Calculator
- 1Enter your annual mileage and gas car's MPG plus local gas price.
- 2Enter your EV's efficiency in miles per kWh and your electricity rate.
- 3Compare annual fueling costs to see how much an EV could save you each year.
Inputs explained
- Miles driven per year
- Enter the miles driven per year you are working with.
- Gas car MPG
- Enter the gas car mpg you are working with.
- Gas price per gallon
- Enter the gas price per gallon you are working with.
- EV efficiency(mi/kWh)
- Enter the ev efficiency in mi/kWh.
- Electricity price per kWh
- Enter the electricity price per kwh you are working with.
Worked example
Using the values the calculator loads with:
Inputs
- Miles driven per year12000
- Gas car MPG28
- Gas price per gallon3.50
- EV efficiency3.5 mi/kWh
- Electricity price per kWh0.15
Results
- Annual EV savings$985.71
- Gas car annual fuel cost$1,500.00
- EV annual charging cost$514.29
- 10-year savings estimate$9,857.14
Frequently asked questions
Does this include the vehicle purchase price?
No, this compares fueling costs only — factor in purchase price and incentives separately.
What's a typical EV efficiency?
Most EVs achieve 3-4.5 miles per kWh, with efficient models exceeding 4.5 mi/kWh.
What do I need to enter into the EV vs Gas Cost Calculator?
Just 5 values: miles driven per year, gas car mpg, gas price per gallon, ev efficiency, electricity price per kwh. 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 vs Gas Cost Calculator work out the answer?
The comparison converts miles driven into either gallons of gas or kWh of electricity, then multiplies by local prices. It applies the formula gas cost = (miles / mpg) x gas price; ev cost = (miles / miles-per-kWh) x electricity price and shows the working so you can check each step by hand.
Is the EV vs Gas Cost 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.