EV Cost by State Calculator
What an electric car costs to run depends more on which state you live in than on which car you drive. Pick your state to see its electricity rate, its annual EV registration fee, and what the two together work out to per mile.
Cost in your state
Why your state matters more than your car
Residential electricity in the United States runs from about 12.4 cents per kilowatt-hour in Idaho to 52 cents in Hawaii. That is a spread of more than four to one, on the single input that decides most of what an electric car costs to run.
Put that next to the vehicles. Efficient EVs use roughly 25 kWh per 100 miles and thirsty ones perhaps 45 — a difference of under two to one. So the gap between two states is comfortably wider than the gap between an efficient sedan and a large electric SUV. The same car costs dramatically different amounts to run in Boise and in Honolulu, and no national average describes either of them.
This is why the site asks for your state rather than quoting a single number, and why the figure it loads is only a starting point. Even within one state, rates differ between utilities, between rate plans, and between times of day. If you have a bill in front of you, entering your actual rate will beat any state average.
The annual EV fee, and why it is shaped oddly
Gasoline vehicles pay for roads through fuel taxes collected at the pump. An electric car buys no gasoline, so 41 states charge an annual EV registration fee instead. Ten jurisdictions — including New York, Florida and Massachusetts — charge nothing at all.
The amounts vary as much as the electricity rates: around $150 a year is typical, Georgia charges $274, and New Jersey and Michigan are close behind. Plug-in hybrids usually pay about half, on the reasoning that they still buy some gasoline and therefore still pay some fuel tax.
Flat fees hit low-mileage drivers hardest
The important structural point is that these fees are flat. The gasoline tax they replace is inherently proportional — drive twice as far, buy twice as much gas, pay twice the tax. An annual fee is the same whether you drive 5,000 miles or 25,000.
Spread across 13,600 miles a year, a $150 fee works out at about 1.1 cents per mile. For someone driving 5,000 miles it is three cents per mile. For someone driving 25,000 it is under a cent. A retiree doing short local trips can end up contributing more per mile than a commuter, which is close to the opposite of what a road-use charge is meant to do. The calculator above shows the fee as cents per mile at your own distance precisely so this is visible rather than buried in an annual total.
What this calculator includes
Electricity and the state EV registration fee. Those are the two costs that vary by state and that most people do not have to hand, which is what makes them worth calculating rather than guessing.
It does not include insurance, ordinary registration, maintenance, tires or depreciation. Those vary far more by individual circumstance and by vehicle than by state, and folding them in would make the result look more precise than it is. For a fuller picture, the EV running cost calculator adds maintenance, and the EV vs gas total cost comparison guide covers the rest.
There is also no federal purchase incentive to include any more. The $7,500 new and $4,000 used clean vehicle credits both ended for vehicles acquired after 30 September 2025. State, local and utility programmes may still apply where you live and are worth checking separately; none is assumed here.
Electricity rates are state residential averages from the US Energy Information Administration, May 2026. EV fees are from the Tax Foundation, July 2026. Both change, and several states have increases already legislated. Confirm with your utility and your state DMV before relying on these figures. This is a reference tool, not advice.
Frequently asked questions
Which state is cheapest to run an EV in?
On electricity alone, the cheapest states are in the Northwest and the Plains — Idaho, Utah, Oklahoma, Missouri and Nebraska all sit near 13 cents per kilowatt-hour or below. But the annual EV fee can reverse the ranking for low-mileage drivers: a state with cheap power and a $200 fee may cost more overall than one with dearer power and no fee. The comparison strip above ranks states on both together at your own annual mileage, which is the only ranking that means anything for you specifically.
Why is Hawaii so much more expensive?
Hawaii generates much of its electricity from imported oil, and every island grid is separate and small, so there are none of the economies of scale that mainland interconnection provides. The result is a residential rate around 52 cents per kilowatt-hour, roughly three times the national average. An EV is still usually cheaper to run than a gas car there, because gasoline is also expensive, but the margin is far narrower than on the mainland.
Does my state's EV fee replace the gas tax exactly?
Not exactly, and usually not fairly. Fuel tax is proportional to how much you drive; a flat annual fee is not. States generally set the fee at roughly what an average driver would have paid in gasoline tax, which means below-average drivers overpay and above-average drivers underpay. Whether that is reasonable depends on your mileage, which is why the calculator shows the fee as cents per mile at your distance rather than as an annual figure alone.
Is there still a federal tax credit for buying an EV?
No. The $7,500 credit for new clean vehicles and the $4,000 used-vehicle credit both ended for vehicles acquired after 30 September 2025. A narrow exception exists for vehicles under a binding written contract before that date. State, local and utility incentives may still be available where you live, and the federal home charger credit may apply in eligible locations, so both are worth checking separately.
Should I use my state's average rate or my own?
Your own, whenever you have a bill to hand. State averages hide a lot: different utilities within one state can differ substantially, and a time-of-use plan can put overnight charging well below the state average while peak-rate charging sits well above it. The state figure is a reasonable starting point when you do not know your rate, not a substitute for it. Enter your own in the My EV panel and every figure across the site will use it.
Does charging at public stations change the fee?
No. The registration fee is annual and fixed by your state, so it is identical whether you charge entirely at home or entirely on the road. What public charging changes is the energy half of the calculation, often dramatically — DC fast charging typically costs two to three times a residential rate. The fee stays the same either way.
