How many miles per gallon does a Lexus 450h+ get?
The Lexus NX 450h+ plug-in hybrid is EPA-rated at 84 MPGe combined, with roughly 36–39 miles of electric-only driving and about 30–34 mpg when the battery is depleted. Real-world results vary with climate, terrain and how you drive or charge.
Beyond the numbers, this article explains how MPGe is calculated for plug-in hybrids, what to expect in daily use, and how different markets and model years can shift the figures.
Understanding MPGe and plug-in hybrids
Plug-in hybrids like the NX 450h+ measure efficiency in two ways: MPGe for electric-plus-gas operation and traditional mpg once the battery is exhausted. The electric-range figure reflects how far you can go on battery power before the petrol engine takes over. The EPA uses standardized tests that may not reflect all driving conditions, so real-world mileage can differ.
EPA fuel economy numbers for the NX 450h+
Before listing the typical numbers, note that the NX 450h+ has multiple configurations across markets and year lines. The following values are representative for recent model years sold in the U.S. and Europe at the time of writing.
- Combined MPGe: 84 MPGe (miles per gallon equivalent) overall when using electricity and gasoline.
- Electric-only range: approximately 36–39 miles on a full charge, depending on year and testing conditions.
- Gasoline-only mpg after battery depletion: around 30–34 mpg in typical driving scenarios.
- Total driving range: a combination of electric and gasoline range, typically spanning well beyond 300 miles per full charge and fuel remaining, depending on usage.
These figures provide a baseline for planning trips and charging needs, but your personal results will vary with temperature, speed, HVAC use, and how often you can recharge.
Factors that influence real-world efficiency
Several factors can boost or diminish the NX 450h+'s mpg in practice. Cold weather reduces battery efficiency, high speeds and aggressive acceleration lower electric range, and extensive air conditioning use can pull energy from the battery. Conversely, plugging in regularly for a daily commute and using EV mode for short trips can maximize the benefit of the plug-in hybrid system.
Summary
In summary, the Lexus NX 450h+ is designed to deliver substantial electric-range benefits with a reasonable gasoline MPG once the battery runs down. The typical EPA picture shows about 84 MPGe combined, ~36–39 miles of electric range, and roughly 30–34 mpg when operating on gasoline alone. Expect variations by year, market, and driving style.
