How much does it cost to charge a BMW iX?

A full charge for a 2026 BMW iX xDrive60, 20-inch wheels costs about $22.93 at home, at the US average residential electricity rate of 18¢/kWh. Filling up the same car costs $15.73 in Idaho, the cheapest state, and $42.36 in California — your own rate decides it.

That full charge draws roughly 127 kWh from the wall and buys 364 miles of EPA-rated range — about $0.063 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 BMW iX costs about $0.063 a mile to charge at home at the US average electricity rate, or $6.30 per 100 miles. That is energy only — the EPA rates this car at 35 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 BMW iX at home adds about $63 a month to your electricity bill at the US average rate, driving 12,000 miles a year. That is the yearly cost of $756 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 $43 a month, and $116 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 xDrive60, 20-inch wheels at 35 kWh per 100 miles with 364 miles of combined range. Those two figures together give the energy for a full charge, which is where the 127 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 iX became markedly cheaper to run for 2026. The xDrive60, which took the xDrive50’s place in the range, is rated 35 kWh per 100 miles with 364 miles of EPA range on 20-inch wheels; a 2025 xDrive50 on the same wheels was rated 41 with 309 miles. That is about 15% less energy per mile and 55 more miles per charge, and it takes the iX below a Cadillac Lyriq or Rivian R1S per mile, though it still uses about 40% more than a Model Y. Wheels move it most after that: the xDrive60 is rated 37 on 21-inch wheels, 39 on 22-inch and 40 on 23-inch, with range down to 318 miles. The pattern is not tidy on every trim. The entry xDrive45 is rated 36 on 20-inch wheels but 40 on 22-inch and 39 on 23-inch, so the largest wheel is not the thirstiest. The M70 at the top is rated 42 on 21-inch wheels, 44 on 22-inch and 45 on 23-inch, up to 29% more energy per mile than this car. The long range is also why a full charge is large: covering 364 miles draws about 127 kWh from the wall, so the fill looks expensive even though each mile costs less than in a Lyriq.

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 BMW iX xDrive60, 20-inch wheels. Other trims of the same car are rated differently — see above. How these figures are calculated.