US: Light-duty: Highway Fuel Economy Cycle (HWFET)


The Highway Fuel Economy Cycle (HWFET) cycle is a chassis dynamometer driving schedule, developed by the US EPA for the determination of fuel economy of light duty vehicles [40 CFR part 600, subpart B].


United States


The HWFET is used to determine the highway fuel economy rating, while the city rating is based on the FTP-75 test.


EPA Highway Fuel Economy Cycle

The following parameters are characteristic of the cycle:

  • Duration: 765 seconds
  • Total distance: 10.26 miles (16.45 km)
  • Average Speed: 48.3 mi/h (77.7 km/h)

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