EV Range in Cold Weather Calculator
Enter your EV's EPA range and the temperature, say whether it heats the cabin with a heat pump, and see the estimated winter range.
EV range in cold weather
F04Scenario A
Estimated winter range
About 25% below the EPA figure at 20 °F.
- Estimated range loss
- 25%
- Estimated range
- 225 mi
- Range if you precondition while plugged in (our estimate, ×1.08)
- 243 mi
Estimate. Formula and sources are under “How it works”. Change any input; the result updates as you type.
Formula
How it works
The calculator uses range-loss figures by temperature from real-world fleet data:
| Temperature | Estimated range loss |
|---|---|
| 70 °F | 0% |
| 50 °F | 5% |
| 32 °F | 15% |
| 20 °F | 25% |
| 0 °F | 35% |
| −10 °F | 42% |
- The temperature you enter is matched to the nearest row.
- Heat pump: subtract 5 points from the loss (a heat pump heats the cabin with less energy).
- Winter range = EPA range × (1 − loss)
- With preconditioning on the plug = winter range × 1.08: warming the battery and cabin while still plugged in takes that energy from the grid instead of the battery.
Cold slows the battery's chemistry and heating the cabin takes energy, which is why the loss grows as the temperature drops.
Sources: Recurrent Auto real-world range data (10,000+ vehicles, 2023–25); AAA 2019 cold-weather test (average 41% range loss at 20 °F with the cabin heater on). The 1.08 preconditioning factor is our estimate.
Worked example
A worked example
An EV rated for 250 miles, driven at 0 °F with a heat pump, loses an estimated 30 percent of its range: 35% for the temperature, minus 5 points for the heat pump. That leaves about 175 miles. Preconditioning while plugged in brings the estimate to about 189 miles.
Questions
FAQ
How much range do EVs lose in winter?
In the fleet data we use, about 15% at freezing, 25% at 20 °F and 35% at 0 °F, with resistive cabin heat. A 300-mile EV at 20 °F comes to about 225 miles. Short trips with a cold start lose more than a long highway drive.
Do heat pumps help EV range?
Yes. We take 5 points off the loss for a heat pump. The same 300-mile EV at 20 °F keeps about 240 miles with a heat pump instead of 225.
What are the best winter EV habits?
Precondition while plugged in, so the car warms up on grid power. Use the seat and steering-wheel heaters, which warm you with far less energy than heating all the cabin air. Park in a garage when you can.
Does the cold damage the battery?
The range loss is temporary: range comes back when temperatures rise. This calculator doesn't estimate long-term battery wear.
Why does my car's range estimate drop faster than this?
The car's guess-o-meter often reacts to your last few miles, including a cold start. The figures here are averages over many cars and trips.
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