How much does it cost to charge a Kia EV9?

A full charge for a 2026 Kia EV9 Long Range RWD costs about $20.86 at home, at the US average residential electricity rate of 18¢/kWh. Filling up the same car costs $14.31 in Idaho, the cheapest state, and $38.54 in California — your own rate decides it.

That full charge draws roughly 116 kWh from the wall and buys 305 miles of EPA-rated range — about $0.068 a mile.

What it costs at three real electricity rates

Your rate is the only input that really moves this number, so here is the same car at three real ones — the cheapest state, the national average, and the most expensive large mainland market.

Hawaii is higher still at 52¢ — a 4.2:1 spread from the cheapest state to the dearest. EPA figures checked September 2026; electricity rates checked August 2026.

What it costs per mile

A Kia EV9 costs about $0.068 a mile to charge at home at the US average electricity rate, or $6.84 per 100 miles. That is energy only — the EPA rates this car at 38 kWh per 100 miles measured at the wall socket, so charging losses are already inside the figure and should not be added again.

Per mile is the number that survives a change of car: it does not care about battery size, so it is the only fair way to line this car up against one with a much bigger or smaller pack.

What it adds to your electricity bill

Charging a Kia EV9 at home adds about $68 a month to your electricity bill at the US average rate, driving 12,000 miles a year. That is the yearly cost of $821 spread evenly across twelve months — a month with a road trip in it costs more, and a quiet one costs less.

Nothing else on the bill changes: the car draws the same kilowatt-hours whatever else is running in the house, so the increase is the charging and nothing more.

At the cheapest state rate the same driving adds $47 a month, and $126 at the most expensive — the table above has all three. If your utility offers an overnight or time-of-use rate, charging on it lands at the low end rather than the middle.

Where the numbers come from

The EPA rates this Long Range RWD at 38 kWh per 100 miles with 305 miles of combined range. Those two figures together give the energy for a full charge, which is where the 116 kWh above comes from.

We work it out that way rather than quoting a battery size on purpose. Manufacturers publish gross capacity, which includes a buffer at each end of the pack that never takes a charge, so a cost built on it overstates your bill. And the EPA measures at the wall socket rather than at the battery, so charging losses are already inside the figure — no need to add them, and adding them would count the same loss twice.

What this means for this car

The EV9 is a three-row SUV and its running cost says so: at 38 kWh per 100 miles the Long Range RWD uses about half as much energy again as a Model Y, close to the Cadillac Lyriq at 37 and a little under the Rivian R1S at 40. Covering its 305-mile range draws around 116 kWh from the wall, one of the largest fills on this site. The battery choice does not change the cost of a mile. The Standard Range RWD is rated the same 38 kWh per 100 miles over 230 miles, so the bigger pack costs more to fill only because it holds more. The drivetrain is what moves the per-mile figure. For 2026 the Long Range AWD is rated 40, the GT-Line 41 and the GT, first listed this year, 43, which is 13% more energy per mile than this car. The all-wheel-drive versions improved slightly on paper for 2026: the 2024 and 2025 Long Range AWD was rated 41 with 280 miles and the GT-Line 42 with 270, while both rear-wheel-drive versions were already rated 38, the Long Range with 304 miles.

How it compares

All at 18¢/kWh and 12,000 miles a year. The gas comparison is illustrative — it is not a claim about any particular car.

Figures are for the 2026 Kia EV9 Long Range RWD. Other trims of the same car are rated differently — see above. How these figures are calculated.