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Range calculation


Jul 5, 2020
Egremont, MA
Does anyone know how range is calculated by a vehicle on a long trip? When the screen shows 17% remaining at the next supercharger, does this take into account speed, elevation, weight load, etc. I know that these factors can be set when using ABRP but am unsure if I have to expect a lower residual if traveling over mountainous roads and is speed limit used in the calculation.


Active Member
Oct 2, 2020
The Tesla Navigation route planning uses posted speed limits, known elevation changes but does not factor in outside temperature, road conditions or head winds. Payload has minimal impact on range. The Tesla Energy Screen will display the estimated versus actual energy used along a route. If your energy usage is much higher than planned the only thing you can is slow down well in advance of the Tesla warning you that you won't be able to reach your destination or the next Supercharger at your current speed or else divert to a closer Supercharger or other charging location. As an example, when towing with the Model Y, the energy screen will provide accurate information on your energy usage (could be double the usual estimated usage) along the route.
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