How Much Does It Cost to Charge a BMW iX at Home? $20.70

Charging a 2026 BMW iX costs about $20.70 for a full charge and $6.70 per 100 miles at 17¢/kWh — about $804 a year at 12,000 miles.

Updated September 2026 · Source: EIA Electric Power Monthly Table 5.6.A (July 2026 data) · EPA fueleconomy.gov · next EIA update ~Oct 23

On this page: CalculatorTableHow we calculatedSources

Jump to calculator ↓

Why this number

Charging a 2026 BMW iX costs about $20.70 for a full charge (~122 kWh) at the US average rate of 17¢/kWh — roughly $6.70 per 100 miles, or $804 a year at 12,000 miles. The iX uses 39.4 kWh/100 mi on the EPA combined cycle. The iX’s real cost scales with your own rate, from about 12¢ to over 50¢ across the US.

The BMW iX (EPA data for the 2026 model year, the newest the EPA lists; dollar figures use 2026 electricity rates) uses 39.4 kWh per 100 miles on the EPA combined cycle — the wall-outlet figure, so charging losses are already counted (look up your exact trim at fueleconomy.gov ). At the US average residential rate of 17¢/kWh that puts the iX at about $6.70 per 100 miles — 6.70¢ a mile. That lands mid-pack: 53th of the 67 current models tracked here. Nothing about the running cost of the iX will surprise you in either direction, which for a SUV at 39.4 kWh/100 mi is a reasonable outcome.

What an iX costs to charge at every rate

The same iX costs $4.87 per 100 miles at Idaho’s 12.35¢ and $20.77 at Hawaii’s 52.72¢ — a 4.3× spread that is entirely the rate:

Wall-side for the iX: EPA’s 39.4 kWh/100 mi is measured at the outlet, charger losses included; quick-fill your state above for your own figure.

That per-mile figure is the one to hold against gasoline: at 17¢/kWh the iX’s 6.70¢ a mile compares with about 13.6¢ for a 30-mpg gas car at $4.07 a gallon (EIA weekly, Aug 31, 2026). The EV vs gas cost guide works the iX’s math in full — both formulas, and the electricity rate at which the advantage disappears.

Range: what a “full charge” of the iX really means

EPA range across the lineup runs 279–364 miles, averaging 309. Multiplying that by the car’s efficiency gives roughly 122 kWh to refill a full range from empty, which is the honest way to think about a ‘full charge’ — battery capacity figures include a buffer you never actually use.

The iX on a public fast charger

On a public fast charger at about 48¢/kWh the iX costs $18.91 per 100 miles against $6.70 at home — 2.8× — or roughly $2,269 a year instead of $804 if it never sees a home outlet. Why a session costs more than the posted price for a iX (10–80% charging curve, idle fees, per-minute billing) is explained once on the cost-to-charge hub ; the EV time-of-use calculator nets an overnight rate against the iX’s $804 flat-rate figure.

The iX in cold weather

A hard winter lifts the iX from 39.4 to roughly 51.2 kWh/100 mi (the middle of the 20–40% rise real-world data shows), so $8.71 per 100 miles instead of $6.70 and an effective range nearer 238 miles than 309. The mechanics behind the iX’s winter penalty — cabin heat, battery chemistry, preconditioning from the wall — are on the hub ; the iX’s $804 annual figure above already averages the seasons.

Where the iX sits against other EVs

Its nearest neighbors on efficiency are the Cadillac Vistiq (39.3 kWh/100 mi) and the Polestar 4 (39.7 kWh/100 mi). The iX at 39.4 kWh/100 mi sits against a set that runs from the Tesla Model Y at 26.9 kWh/100 mi, and the least efficient is the GMC Hummer EV at 67.8 — a spread that changes annual charging cost by $834 a year at 17¢/kWh and 12,000 miles. And if a SUV like the iX is the fixed requirement, the cheapest SUV to run tracked here is the Tesla Model Y at $549 a year — $255 less than the iX.

Trims: does the iX version you pick change the bill?

The EPA rates 11 configurations of the 2026 iX, and they are not close: 34.7 kWh/100 mi for the most efficient, 44.8 for the least, a 29% spread. At 12,000 miles that is about $206 a year between the cheapest and most expensive version of the same iX. Bigger wheels, all-wheel drive and performance tunes are usually what separates them — worth knowing before you tick the options box.

How it compares inside the BMW range

The iX at 39.4 kWh/100 mi sits among 5 BMW EVs tracked here, running from 31.7 (iX3) to 39.4 (iX). Also on this site: BMW iX3 , BMW i5 , BMW i4 , BMW i7 .

The tax question for the iX, answered plainly

Nothing about the iX changes that: the rules are the same for every EV, and the full 2026 position — §30D, §25E, the ended §30C charger credit, state programs — is in the energy tax credit guide and on the cost-to-charge hub .

Related

Closest comparisons to the iX on running cost and body style: Cadillac Vistiq (39.3 kWh/100 mi), Polestar 4 (39.7 kWh/100 mi), Cadillac Lyriq (39.3 kWh/100 mi).

Put the iX’s $804 a year against a gas car in the EV vs gas calculator , check your state’s rate , or price a road-trip stop for a iX in the Supercharger vs home calculator . All 67 EVs . The iX is only one line on the household bill — the 40-appliance running-cost ranking shows where $804 a year of charging lands next to everyday loads like a garage heater or a electric furnace .

Frequently asked questions

How we calculated this

Worked for the iX: 39.4 kWh/100 mi ÷ 100 × 17¢ = $6.70 per 100 miles; 309 mi × 39.4 ÷ 100 = 122 kWh, × $0.17 = $20.70 per full charge; $6.70 × 12,000 ÷ 100 = $804 a year. The iX’s gasoline comparison is 12,000 ÷ 30 mpg × $4.07 = $1,628. EPA combined ratings, measured at the wall.

Sources: U.S. Energy Information Administration (EIA) electricity rates · DSIRE incentive records · public IRS/OBBBA guidance. Figures are modeled estimates, not quotes or tax advice. See our methodology.

Where to go next

• Cost to charge a Cadillac Lyriq — 39.3 kWh/100 mi against the iX’s 39.4 — $6.68 vs $6.70 per 100 miles at 17¢.
• Cost to charge a Cadillac Vistiq — 39.3 kWh/100 mi against the iX’s 39.4 — $6.68 vs $6.70 per 100 miles at 17¢.
• Cost to charge a Polestar 4 — 39.7 kWh/100 mi against the iX’s 39.4 — $6.75 vs $6.70 per 100 miles at 17¢.
• Cost to charge an EV: all 67 models ranked — Where the iX’s $804 a year sits among 67 EVs, plus the fast-charging, cold-weather and tax explainers.
• EV vs gas cost calculator — The iX’s 39.4 kWh/100 mi against your gas car’s mpg and your local pump price.