Vehicle Emissions Standards: How to Convert WLTP to EPA?

Our site is based in North America so we mainly use EPA (Environmental Protection Agency) fuel ratings figures for the cars we cover – but now and again WLTP (Worldwide Harmonized Light Vehicle Test Procedure) number used. Some manufactures like Lexus will use WLTP numbers

WLTP vs EPA: What is the Difference Between the Standards?

The WLTP (Worldwide Harmonized Light Vehicle Test Procedure) and the EPA (Environmental Protection Agency) are two different testing procedures used to evaluate the fuel economy and emissions output of vehicles. Both tests are used to measure a vehicle’s performance in terms of carbon dioxide (CO2)