$13.79 a Full Charge: Lexus RZ Charging Cost at Home

Charging a 2026 Lexus RZ costs about $13.79 for a full charge and $5.30 per 100 miles at 17¢/kWh — about $636 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

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Why this number

Charging a 2026 Lexus RZ costs about $13.79 for a full charge (~81 kWh) at the US average rate of 17¢/kWh — roughly $5.30 per 100 miles, or $636 a year at 12,000 miles. The RZ uses 31.2 kWh/100 mi on the EPA combined cycle. The RZ’s real cost scales with your own rate, from about 12¢ to over 50¢ across the US.

The Lexus RZ (EPA data for the 2026 model year, the newest the EPA lists; dollar figures use 2026 electricity rates) uses 31.2 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 RZ at about $5.30 per 100 miles — 5.30¢ a mile. That is comfortably better than average — 16th most efficient of the 67 current models tracked here — and puts running costs in the range most buyers hope for when they switch.

What a RZ costs to charge at every rate

The same RZ costs $3.85 per 100 miles at Idaho’s 12.35¢ and $16.45 at Hawaii’s 52.72¢ — a 4.3× spread that is entirely the rate:

Wall-side for the RZ: EPA’s 31.2 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 RZ’s 5.30¢ 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 RZ’s math in full — both formulas, and the electricity rate at which the advantage disappears.

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

EPA range across the lineup runs 228–301 miles, averaging 260. Multiplying that by the car’s efficiency gives roughly 81 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 RZ on a public fast charger

On a public fast charger at about 48¢/kWh the RZ costs $14.98 per 100 miles against $5.30 at home — 2.8× — or roughly $1,797 a year instead of $636 if it never sees a home outlet. Why a session costs more than the posted price for a RZ (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 RZ’s $636 flat-rate figure.

The RZ in cold weather

A hard winter lifts the RZ from 31.2 to roughly 40.6 kWh/100 mi (the middle of the 20–40% rise real-world data shows), so $6.90 per 100 miles instead of $5.30 and an effective range nearer 200 miles than 260. The mechanics behind the RZ’s winter penalty — cabin heat, battery chemistry, preconditioning from the wall — are on the hub ; the RZ’s $636 annual figure above already averages the seasons.

Where the RZ sits against other EVs

Its nearest neighbors on efficiency are the Kia EV3 (31.0 kWh/100 mi) and the Tesla Model S (31.3 kWh/100 mi). The RZ at 31.2 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 RZ is the fixed requirement, the cheapest SUV to run tracked here is the Tesla Model Y at $549 a year — $88 less than the RZ.

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

The EPA rates 6 configurations of the 2026 RZ, and they are not close: 26.6 kWh/100 mi for the most efficient, 35.3 for the least, a 33% spread. At 12,000 miles that is about $177 a year between the cheapest and most expensive version of the same RZ. Bigger wheels, all-wheel drive and performance tunes are usually what separates them — worth knowing before you tick the options box.

The tax question for the RZ, answered plainly

Nothing about the RZ 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 RZ on running cost and body style: Kia EV3 (31.0 kWh/100 mi), Tesla Model S (31.3 kWh/100 mi), Volkswagen ID.4 (31.4 kWh/100 mi).

Put the RZ’s $636 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 RZ in the Supercharger vs home calculator . All 67 EVs . The RZ is only one line on the household bill — the 40-appliance running-cost ranking shows where $636 a year of charging lands next to everyday loads like a heat pump water heater or a air fryer .

Frequently asked questions

How we calculated this

Worked for the RZ: 31.2 kWh/100 mi ÷ 100 × 17¢ = $5.30 per 100 miles; 260 mi × 31.2 ÷ 100 = 81 kWh, × $0.17 = $13.79 per full charge; $5.30 × 12,000 ÷ 100 = $636 a year. The RZ’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 Tesla Model S — 31.3 kWh/100 mi against the RZ’s 31.2 — $5.32 vs $5.30 per 100 miles at 17¢.
• Cost to charge a Kia EV3 — 31.0 kWh/100 mi against the RZ’s 31.2 — $5.27 vs $5.30 per 100 miles at 17¢.
• Cost to charge a Volkswagen ID.4 — 31.4 kWh/100 mi against the RZ’s 31.2 — $5.34 vs $5.30 per 100 miles at 17¢.
• Cost to charge an EV: all 67 models ranked — Where the RZ’s $636 a year sits among 67 EVs, plus the fast-charging, cold-weather and tax explainers.
• EV vs gas cost calculator — The RZ’s 31.2 kWh/100 mi against your gas car’s mpg and your local pump price.