EV vs Gas Cost Per Mile: The Honest 2026 Comparison

Cost per mile is the only fair way to compare gasoline and electricity. MPG and miles per kWh are different units, and a gallon and a kilowatt-hour are not remotely comparable in price. Once both are converted to dollars per mile, the comparison becomes simple — and more conditional than the headlines suggest.

The current numbers

Using the week ending October 26, 2026 U.S. average of $4.269 per gallon:

Assumptions: residential electricity 17 cents/kWh; public fast charging 43 cents/kWh.

The home charging advantage

The EV’s cost advantage comes almost entirely from the price of electricity at home. Residential rates in most of the U.S. are between 12 and 22 cents per kWh. At 17 cents and 4 miles per kWh, the cost is about 4.3 cents per mile — roughly one-third of a 32 MPG gas sedan.

Public fast charging changes the math. At 43 cents per kWh, the same car costs 10.8 cents per mile — cheaper than a 24 MPG SUV but more expensive than a 40 MPG hybrid.

This is the single most important variable in any EV cost comparison, and it is usually glossed over.

What the per-mile number leaves out

Energy is only part of the cost of driving. For a complete comparison, add:

Purchase price and incentives

EVs typically cost more upfront. The federal clean vehicle credit and state incentives vary, and some have income or price caps. The gap can take five to ten years of fuel savings to close, depending on the vehicles compared.

Home charging equipment

A Level 2 charger costs roughly $500 to $1,500 installed, depending on panel capacity and wiring distance. Renters may not be able to install one at all.

Maintenance

EVs avoid oil changes, spark plugs, and some brake wear (regenerative braking). They still need tires, cabin filters, brake fluid, and coolant. Tire wear is often higher because EVs are heavier and have instant torque.

Insurance and registration

Insurance premiums for EVs are often higher because of repair costs. Several states charge an annual EV road-use fee to replace fuel tax revenue — typically $100 to $250 a year.

Depreciation

EV depreciation has been steeper than average in recent years because of rapid technology changes and price cuts. This is the largest cost item for many owners and the hardest to predict.

Cold weather and highway speed

Two factors cut EV efficiency more than gas efficiency:

• Cold: 20 to 30 percent range loss in freezing temperatures.
• Highway speed: aerodynamic drag affects both, but EVs lose a larger share of their range at 75+ MPH.

A gas car rated at 30 MPG might return 27 MPG in winter. An EV rated at 4.0 miles per kWh might return 2.8 in the same conditions. The per-mile cost gap narrows in winter, especially for public charging.

Who actually saves money

Strong EV case:

• You can charge at home or at work.
• You drive 12,000+ miles a year.
• You live in a state with cheap electricity (under 15 cents/kWh).
• You keep the car long enough to amortize the price gap.

Weak EV case:

• You rent and cannot install a charger.
• You rely on public fast charging.
• You drive mostly long highway trips in cold climates.
• You trade cars every three years.

The per-mile answer

At current prices, home-charged EVs cost roughly 4 to 6 cents per mile in energy. Efficient gas cars cost 11 to 15 cents. The gap is real and large — but only for drivers who can charge at home.

For public-charging-only drivers, the gap can shrink to 2 to 4 cents per mile, which may not justify the purchase premium.

Use the EV vs gas calculator with your own electricity rate, charging mix, and annual mileage. For the gas side, check your state average — the national number can be off by a dollar a gallon.