Finding
Certified range comes from a regulator's test and adjustment; advertised range is the maker's presentation of it
In the US, an EV runs the EPA city and highway cycles in a lab until the battery is empty; the raw result is then multiplied by 0.7 by default to reflect real-world conditions, or by a factor from additional five-cycle testing that the maker can choose to run. That adjusted figure is the certified range in the EPA database. Websites and ads may round it, quote the best configuration, or state a more conservative number.
ElectronsX publishes the certified figure for each market - EPA in the US, WLTP in Europe, CLTC from China's MIIT catalog, ARAI in India - with the cycle labeled, and shows a range from the shortest to longest configuration rather than only the headline trim. Where a maker's site and the regulator disagree, the regulator's record wins. The five-cycle option is one reason two similar cars can see different discounts from their lab results.
Sources
Where certified range comes from
| Market | Figure | Source | Unit |
|---|---|---|---|
| United States | EPA combined | EPA Fuel Economy database | Miles |
| Europe | WLTP combined | Type approval records | Kilometers |
| China | CLTC | MIIT new-energy vehicle catalog | Kilometers |
| India | ARAI / AIS | Homologation | Kilometers |
Sources
Sources and scope
- Scope
- Certified and manufacturer-advertised EV range
- Sources
- EPA test procedures (two-cycle and five-cycle methods); ElectronsX
- Updated
- October 2026