How much does it cost to charge a Hyundai Ioniq 6?

A full charge for a 2025 Hyundai Ioniq 6 RWD, 18-inch wheels costs about $16.01 at home, at the US average residential electricity rate of 18¢/kWh. Filling up the same car costs $10.98 in Idaho, the cheapest state, and $29.57 in California — your own rate decides it.

That full charge draws roughly 89 kWh from the wall and buys 342 miles of EPA-rated range — about $0.047 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 Hyundai Ioniq 6 costs about $0.047 a mile to charge at home at the US average electricity rate, or $4.68 per 100 miles. That is energy only — the EPA rates this car at 26 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 Hyundai Ioniq 6 at home adds about $47 a month to your electricity bill at the US average rate, driving 12,000 miles a year. That is the yearly cost of $562 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 $32 a month, and $86 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 RWD, 18-inch wheels at 26 kWh per 100 miles with 342 miles of combined range. Those two figures together give the energy for a full charge, which is where the 89 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

At 26 kWh per 100 miles the Ioniq 6 ties the Toyota bZ as the most efficient car on this site from outside Tesla and Lucid, one kWh behind the Model 3 and Model Y. It shares its underpinnings with the Ioniq 5 but uses about 13% less energy per mile than the Ioniq 5 RWD, rated 30. The EPA lists no 2026 Ioniq 6, so this page covers the 2025 model year, the latest standard car it rates. Wheels decide most of the spread. The same RWD car on 20-inch wheels is rated 30 kWh per 100 miles with 291 miles of range, and the AWD on 20-inch wheels 33 with 270, which is 27% more energy per mile than the car in this table. The Standard Range is rated 25 over 240 miles, slightly cheaper per mile. The detail most worth knowing if you are shopping used is that the early cars were rated better than the 2025 one. The 2023 and 2024 Long Range RWD on 18-inch wheels was rated 24 kWh per 100 miles with 361 miles of range, so an older car is the cheaper one to run per mile and the one that goes further. The performance Ioniq 6 N, listed for 2027, is rated 38.

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 2025 Hyundai Ioniq 6 RWD, 18-inch wheels. Other trims of the same car are rated differently — see above. How these figures are calculated.