Electric Vehicle Range Calculator

How far an EV travels on one charge comes down to battery capacity and how efficiently the car uses that energy, and getting a realistic figure is what keeps range anxiety in check. The 2026 lineup illustrates the spread: the Tesla Model 3 Long Range is projected to hit EPA estimates as high as 340 miles, while the Ford F-150 Lightning Extended Range lands nearer 320 miles. Estimating your own range turns those headline numbers into something useful for planning both the daily commute and the occasional long haul.

The estimate rests on a clear relationship: Range = (Battery Capacity in kWh / Efficiency in Wh/mile) * (1 - Seasonal Adjustment Factor). A typical modern EV averages around 250 Wh/mile, or roughly 4 miles/kWh, which serves as a reasonable efficiency baseline. The seasonal factor accounts for how ambient temperature taxes the battery and how much energy cabin heating or cooling draws. Cold weather commonly trims range by 20%, which translates to a 0.2 adjustment factor in the formula.

Advertised ranges tend to flatter the vehicle, since they come from controlled tests run under near-ideal conditions. Hard acceleration, a loaded vehicle, and the climate system running full-time all eat into the figure you'll see on the road. Leaning on the brochure number without weighing your own driving style is how owners end up surprised at the charger.