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What is the gas mileage for the 2024 Lexus NX 450h+?

The 2024 Lexus NX 450h+ is a plug-in hybrid, offering a notable all-electric range, strong MPGe when running on electricity, and a conventional-gasoline efficiency that kicks in once the battery is tapped or depleted. In short, expect around 37 miles of electric driving, about 84 MPGe combined, and roughly 30 mpg when the vehicle operates on gasoline alone.


Below is a concise breakdown of what the NX 450h+ delivers in terms of fuel economy, followed by context to help you understand how those figures translate to daily use. The numbers come from the EPA and Lexus specifications for the 2024 model year and may vary with driving habits, climate, and charging practices.


Fuel-economy at a glance


The following list captures the core numbers you’ll likely use to gauge efficiency with this plug-in hybrid. Each item reflects EPA estimates and manufacturer data.



  • All-electric range: Up to about 37 miles (approximately 60 kilometers) on a full charge.

  • MPGe (combined): EPA-estimated around 84 MPGe when using both electricity and gasoline.

  • Gasoline-only fuel economy (hybrid mode after the battery is depleted): Roughly 30 mpg combined.


Real-world results can vary based on charging frequency, temperature, terrain, driving style, and how aggressively climate-control systems are used.


Real-world driving and charging considerations


To maximize efficiency, owners typically charge the vehicle regularly to maximize electric driving for daily commutes. When the battery is exhausted or during long trips, the NX 450h+ reverts to its hybrid mode, where gasoline efficiency is the primary metric. Charging times depend on outlet type, with faster results on Level 2 (240V) charging and slower times on a standard 120V outlet.


What this means for buyers


For buyers prioritizing low daily fuel consumption, the NX 450h+ offers a strong electric-forward option for short trips and daily errands, with a respectable gasoline economy for longer drives when charging isn’t convenient. The plug-in capability adds environmental and cost-benefit potential, provided you can regularly plug in to keep the electric range topped up.


Summary


The 2024 Lexus NX 450h+ blends a gasoline engine with a rechargeable battery to deliver about 37 miles of all-electric driving, an EPA-rated 84 MPGe combined, and an approximate 30 mpg when operating in gasoline-only hybrid mode after the battery’s energy is used. Real-world performance will vary, but regular charging and mindful driving can maximize the electric portion of its efficiency. This positions the NX 450h+ as a practical option for commuters seeking to balance electric-range benefits with the flexibility of a traditional gasoline engine for longer trips.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.