WLTP range versus winter range: calculating with a margin
An EV rarely reaches its WLTP range in winter. How much margin owners report, which factors determine the drop, and how to calculate with a working margin instead of the brochure figure.
The WLTP range is a test-cycle outcome under moderate conditions. In winter the range is structurally lower. This guide explains which margin to calculate with and where that comes from. We make no recommendation.
How much lower, according to which source
Owners report on public forums that the real-world range of a common EV is usually 10-25% below WLTP, and in freezing weather at motorway speed towards 30-35% (self-reported, not measured by us; independent winter tests such as those by ADAC show comparable magnitudes). Concretely: a stated 500 km WLTP comes out in a cold period for owners closer to 330-380 km, depending on model, speed and outside temperature. The spread per model is listed with the owner reviews, with source and date.
Where the drop comes from
- Heating of the interior costs energy that does not go into propulsion; a heat pump limits that partly (factory specification or option, varies per model).
- Cold battery temporarily delivers less power and charges slower until it is up to temperature.
- Speed and drag weigh more heavily than temperature: 130 km/h costs considerably more than 100 km/h, regardless of season.
- Short trips in the cold: the car does not warm up before you arrive, so consumption per km is higher.
Calculating with a working margin
Do not take the brochure figure but the WLTP range minus a margin. For a rough winter check: WLTP minus ~25-30% for motorway in frost, minus ~15% for moderate mixed use (indicative, varies per model). Compare that outcome with your longest regular trip plus a reserve, not with your average day. The temperature tool below calculates an indicative drop based on input; it remains an estimate, not a measurement.
Indicative, not buying advice. Winter range depends on model, speed and temperature. Compare with independent winter tests and owner data.
Continue with the data: view the electric models, calculate with the range-at-temperature tool and the real-vs-WLTP tool, or put candidates side by side in the comparator.
No tax or financial advice. Every figure shows its source and reference date. Always compare with an independent adviser and the official source.