Fuel cost — the biggest difference

The most significant ongoing cost difference between an EV and a gas vehicle is the fuel cost. Electricity is substantially cheaper per mile than gas in almost every scenario.

VehicleCost per 100 miAnnual fuel cost (13,600 mi)
EV — EV off peak ($0.13/kWh)$3.35$455
EV — Home standard rate ($0.18/kWh)$4.63$630
EV — DC fast ($0.48/kWh)$12.36$1,681
EV — Ultra rapid DC ($0.56/kWh)$14.42$1,961
Gas — Small car (39.2 MPG)$10.57$1,437
Gas — Medium car (29.4 MPG)$14.09$1,917
Gas — Large car / SUV (23.5 MPG)$17.62$2,396
Gas — Performance / large SUV (19.6 MPG)$21.14$2,875

EV figures based on a typical EV (25.7 kWh per 100 mi). Gas figures based on $4.14 per gallon.

An EV charged at home on a standard rate saves substantially per year compared with a medium gas car. Against a large SUV, the saving is even greater. Over five years, fuel savings alone can amount to thousands of dollars.

Fuel savings over time

Fuel savings compound over the years of ownership. The table below shows cumulative savings for an EV charged at home on a standard rate compared with a medium gas car.

YearEV cumulative fuel costGas cumulative fuel costCumulative saving
1$630$1,917$1,286
2$1,261$3,833$2,573
3$1,891$5,750$3,859
5$3,152$9,583$6,431
7$4,412$13,416$9,004
10$6,303$19,166$12,863

Based on 13,600 mi per year, EV at $0.18/kWh (a typical EV (25.7 kWh per 100 mi)), gas at $4.14/gal (29.4 MPG). Assumes constant prices for comparison.

Over ten years, the fuel saving alone is substantial. If the EV is charged on an off peak tariff, the saving rises even further.

Servicing costs

EVs have significantly fewer moving parts than gas vehicles. There is no engine oil to change, no spark plugs, no timing belt, no exhaust system and no traditional transmission. This translates to lower servicing costs over the life of the vehicle.

Routine EV servicing typically includes brake fluid replacement, cabin air filter changes, tyre rotation and multi-point safety checks. Brake pad wear is also reduced because regenerative braking handles much of the deceleration, meaning the physical brakes are used less.

As a rough guide, annual servicing for an EV tends to be noticeably cheaper than for a gas vehicle, though the exact amount varies by manufacturer and service provider. The saving is modest compared with the fuel cost difference but adds to the total cost advantage over time.

Tyre costs

EV tyres tend to wear slightly faster than gas vehicle tyres for two reasons: the extra weight of the battery and the instant torque of the electric motor, which can increase wear on driven wheels. Some EV owners find they replace tyres 10 to 20 percent more frequently than with a gas car, though this varies with driving style.

EV-specific tyres are available from most major tyre brands. These are designed for lower rolling resistance and reduced road noise, which helps with efficiency and cabin comfort. They may cost slightly more per tyre but the difference is not dramatic. Overall, tyre cost is a small factor in the total cost comparison and does not offset the fuel saving.

Insurance

Insurance premiums for EVs have historically been somewhat higher than for equivalent gas vehicles. This is partly because EVs tend to have higher purchase prices and repair costs — battery and electrical component repairs require specialist skills and parts.

However, the gap has been narrowing as the EV market grows, insurers accumulate more claims data and the repair network expands. Competition among insurers for EV customers has also increased. The difference in annual premiums varies by vehicle, location and insurer, but it is worth shopping around and comparing quotes specifically for the EV model you are considering.

Registration and road user charges

In the United States, gasoline vehicles pay for roads through federal and state fuel taxes collected at the pump. An electric car buys no gasoline and so contributes nothing that way, which is why most states now charge an annual EV registration fee instead.

Forty-one states levy one. The median is around $150 a year, the highest is $274 in Georgia, and ten jurisdictions — including New York, Florida and Massachusetts — charge nothing. Plug-in hybrids usually pay about half, because they still buy some gasoline.

For a total cost comparison the structure matters as much as the amount. The fee is flat, so unlike the gas tax it replaces it does not scale with how much you drive. A low-mileage driver can end up paying more through the fee than they would have paid in gasoline tax, while a high-mileage driver pays far less. The state EV cost calculator shows the effect at your own annual mileage.

Whether a national road user charge for EVs will be introduced at the federal level remains an open question. If one is introduced in the future, it would add to the annual running cost — but at the rates previously proposed (2 to 3 cents per mile), the fuel saving would still more than cover the charge in most scenarios.

Total annual running cost comparison

Bringing together fuel and servicing gives a more complete picture of the annual running cost difference. This comparison uses a medium EV charged at home on a standard rate versus a medium gas car.

Cost categoryEV (estimate)Gas (estimate)
Fuel / electricity$630$1,917
Servicing$300 – $500$600 – $1,000
EV registration fee$0 – $274included in the pump price
Estimated annual total$930 – $1,404$2,517 – $2,917

Based on 13,600 mi per year. EV at $0.18/kWh (a typical EV (25.7 kWh per 100 mi)). Gas at $4.14/gal (29.4 MPG). Servicing costs are indicative ranges. Most states charge an annual EV registration fee in place of the gas tax an electric car does not pay. Insurance and registration excluded as they vary widely.

Even including servicing, the EV is substantially cheaper per year in total running costs. Over five years, those savings make a meaningful contribution towards offsetting any purchase price difference.

The comparison tables on this page use default values for a medium EV and gas car. To see results based on your specific vehicle and electricity rate, select your vehicle and set your rates in the My EV panel — the tables update automatically.

When does the EV become cheaper overall?

EVs typically have a higher upfront purchase price than comparable gas vehicles, though the gap has been narrowing. The point at which the lower running costs offset the higher purchase price — the break-even point — depends on the price difference between the two vehicles, how far you drive and your electricity rate.

Smaller price gap

If the EV costs $5,000 more than the gas equivalent and saves $1,680 per year in fuel alone, the break-even point is roughly three years. With off peak or EV tariff charging, it can be under two years.

Larger price gap

If the price difference is $15,000, the fuel-only break-even point is roughly nine years at a home standard rate, or around seven years on an off peak tariff. When servicing savings are included, the break-even comes earlier.

Higher mileage drivers

Drivers who cover more than 13,600 miles per year break even faster because the per-mile savings accumulate more quickly. At 15,500 miles per year, the annual fuel saving on a standard home rate rises to $2,800, cutting break-even times significantly.

Frequently asked questions

How much cheaper is an EV to run than a gas car?

The difference depends on electricity prices, gas prices and the efficiency of both vehicles. As a rough guide, a typical EV using around 26 kWh per 100 miles at a home electricity rate of $0.18 per kWh costs around $4.68 per 100 miles to run. A gas vehicle doing 29.4 MPG at $4.14 per gallon costs around $14.09 per 100 miles. That represents a significant ongoing saving, though the exact numbers vary depending on how and where the EV is charged.

How much can I save by switching to an EV?

Annual savings depend on how far you drive, the price of electricity, the price of gas and the efficiency of both vehicles. Using typical US figures of 13,600 miles per year, a home electricity rate of $0.18 per kWh and gas at $4.14 per gallon, an EV can save roughly $1,300 to $1,400 per year in fuel costs compared with a gas vehicle doing 29.4 MPG. Savings are higher if you drive more miles per year, charge at off peak rates or if gas prices are elevated.

Is EV charging cheaper than gas?

EVs often cost less per mile to run than gas vehicles because electric motors use energy more efficiently. The exact savings depend on electricity prices, charging location and the vehicle's efficiency. Even when using public fast chargers, the cost per mile can still be lower than gas for many vehicles, especially when fuel prices are high.