Vehicle comparison
Lexus NX 350h vs Lexus RX 350h
Side-by-side fuel and ownership cost comparison. Estimates use 12,000 mi/year at average US gas prices.
- Updated for 2026
- EPA-style MPG
- US avg fuel prices
- US units
- Transparent assumptions
Lowest running cost
Lexus NX 350h wins on fuel cost
At 12,000 miles per year, the Lexus NX 350h costs about $1262 per year, roughly $105 less than the Lexus RX 350h. Over 5 years, that's about $526 in fuel savings.
Spec & cost comparison
MPG/MPGe figures are estimates based on typical recent model years.
| Spec | Lexus NX 350h | Lexus RX 350h |
|---|---|---|
| Type | HYBRID | HYBRID |
| Fuel | Premium gas | Premium gas |
| City MPG/MPGe | 41 | 37 |
| Highway MPG/MPGe | 37 | 34 |
| Combined MPG/MPGe | 39 | 36 |
| Tank / Battery | 14.5 gal | 17.2 gal |
| Energy cost | $4.10/gal | $4.10/gal |
| Cost per mile | $0.105 | $0.114 |
Annual cost at 8k / 12k / 15k miles
Estimated yearly fuel spend at common US mileage levels.
| Miles/year | Lexus NX 350h | Lexus RX 350h | Difference |
|---|---|---|---|
| 8,000 | $841/yr · $70/mo | $911/yr · $76/mo | $70 (Lexus NX 350h) |
| 12,000 | $1262/yr · $105/mo | $1367/yr · $114/mo | $105 (Lexus NX 350h) |
| 15,000 | $1577/yr · $131/mo | $1708/yr · $142/mo | $131 (Lexus NX 350h) |
Estimates only. Real costs depend on driving style, terrain, local gas/electricity prices and weather.
Which one is best for…
Best for commuting
Lexus NX 350h
Highest combined MPG/MPGe and lowest cost per mile means cheaper daily driving.
See Lexus NX 350hBest for road trips
Lexus NX 350h
Better highway efficiency, larger tank/battery and longer range between stops.
See Lexus NX 350hBest for families
Lexus NX 350h
SUVs, minivans and three-row vehicles win on space and child-seat flexibility.
See Lexus NX 350hBest for lowest running cost
Lexus NX 350h
Cheaper energy use and lower cost per mile at every common mileage tier.
See Lexus NX 350hHow we compare these vehicles
- Annual mileage
- Modeled at 12,000 mi/yr unless a scenario specifies otherwise.
- Cost per mile
- $/gal ÷ MPG, or $/kWh ÷ (MPGe ÷ 33.7) for EVs.
- EV vs gas
- Compared at average US gas and residential electricity prices — fast-charging can be 2–3× higher.
- Maintenance
- Fuel cost only — EVs typically save another $400–$1,000/yr in service and brake wear.
Sources & assumptions
- EPA fuel economy data — City / highway / combined MPG and MPGe baselines.
- U.S. Department of Energy (fueleconomy.gov) — Vehicle efficiency and EV range references.
- AAA gas price trends — Recent national and regional retail fuel averages.
- EIA electricity rates — Average residential per-kWh prices used for EV charging.
We summarize publicly available data — no scraping, no external API calls. Figures are calibrated periodically; use the calculators above for your exact inputs.
Frequently asked questions
Which is cheaper to drive, the Lexus NX 350h or Lexus RX 350h?
At 12,000 miles per year, the Lexus NX 350h costs about $1262 per year vs $1367 for the Lexus RX 350h — roughly $105 less per year.
What's the MPG difference between the Lexus NX 350h and Lexus RX 350h?
The Lexus NX 350h is rated around 39 combined MPG versus 36 MPG for the Lexus RX 350h. Highway figures are 37 vs 34.
How much will I spend on fuel over 5 years?
Driving 12,000 miles a year for five years, expect about $6308 for the Lexus NX 350h and $6833 for the Lexus RX 350h, a difference of roughly $526.
Is the Lexus NX 350h or Lexus RX 350h better for commuting?
For pure cost per mile, the Lexus NX 350h wins. EVs charged at home typically deliver the lowest commuting cost, followed by hybrids and efficient compacts.
Which one is better for road trips?
Lexus NX 350h is generally the better road-trip choice — gas and hybrid vehicles win on long highway routes thanks to faster refueling, while EVs work best when charging stops fit your route.
Are these fuel cost numbers accurate for my driving?
They're estimates based on EPA-style combined MPG and average US gas prices. Real-world cost depends on local fuel prices, driving style, terrain, weather and how much city vs highway driving you do.