Gas vs Electric · Real running cost

BMW i4: charging cost vs gas

We've set the BMW i4 as your EV below. Pick the gas car you'd compare against, set your prices and miles, and see the real cost difference — and the break-even.

Efficiency 3.4 mi/kWh EPA range 300 mi From ~$52,000 Typical gas rival 28 mpg
EV · sedan
The two cars
mi/kWh
mpg
12,000 mi (~33/day)
Your local prices
$/kWh
$/gal
90%
Blended ~20.1¢/kWh (public DC ≈$0.48)
Live resultU.S. average
Yes — the EV saves real money
You save $757
a year on fuel vs the BMW i4
You're burning $1,467 a year at the pump
5-year fuel savings
$3,786
Break-even
add prices
Small SUV / crossover27 mpg
$1,467
BMW i43.4 mi/kWh
$709
Trajectory

When you come out ahead

Cumulative net savings versus a gas car over ten years, crossing zero at break-even.now5 yrs10 yrs
Still paying off the price gapNet ahead of gas

Showing cumulative fuel savings. Add the two cars' prices in the controls to plot your exact break-even point.

Charging the EV is like paying $1.60/gallon for gas — that's your break-even pump price.
Gas costs $0.12/mile vs the EV's $0.06/mile (blended 90% home / 10% public).
Curious what charging adds to your electric bill? WattDollar breaks down the cost of an EV charger and every other appliance.See it on WattDollar →
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The i4 is an efficient (~3.4 mi/kWh) electric sport sedan that, against a 28-mpg gas luxury sedan, cuts running cost per mile sharply — and electric torque comes without the premium-fuel bills of a gas performance car.

As a luxury car the premium is higher, so the running-cost savings are a bonus on top of the driving experience rather than the whole reason to buy.

What to keep in mind

BMW i4: common questions

How much does it cost to charge a BMW i4?

At the U.S. average home electricity price of about 17¢/kWh and roughly 3.4 mi/kWh, a BMW i4 costs about 5¢ per mile to charge at home — around $600 a year at 12,000 miles. Public DC fast-charging costs more, so set your home/public mix in the calculator.

Is a BMW i4 cheaper to run than a gas car?

Charging at home, usually yes. Against a typical 28-mpg gas sedan, the BMW i4's per-mile fuel cost is much lower — the calculator shows your annual fuel saving and how long the price difference takes to pay back.

What will the BMW i4 add to your electric bill? WattDollar prices home EV charging alongside every other appliance. Check on WattDollar →