Why does my EV range vary from the advertised EPA rating?

Real-world EV range can be 10-30% lower than EPA estimates due to factors like highway speeds, climate control usage, temperature extremes, and driving style.

How does cold weather affect EV range?

Cold weather can reduce range by 20-40% due to increased battery resistance, cabin heating demands, and reduced regenerative braking efficiency below freezing temperatures.

Does highway driving reduce EV range compared to city driving?

Yes, most EVs are more efficient in city driving where they benefit from regenerative braking, while sustained high speeds (65+ mph) can reduce range by 15-25% compared to EPA estimates.

How much range do I need for my daily commute?

For daily commuting, a good rule is to have a vehicle with at least twice your daily round-trip distance to account for efficiency variations and to avoid range anxiety.

How accurately can I predict remaining range on a trip?

Our calculator provides estimates within 10-15% accuracy for most conditions, but factors like unexpected weather changes, traffic, or accessory usage can affect actual range.

Does using climate control significantly impact range?

Yes, climate control can reduce range by 10-25%, with heating having a larger impact than air conditioning in most electric vehicles.

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Range Performance

EV Range Calculator

Estimate the range of your electric vehicle based on various factors and conditions.

Last updated: June 2023

Estimate the range of your electric vehicle based on various factors and conditions. Range performance depends on battery capacity, driving conditions, and vehicle efficiency metrics.

Calculator

Fill in the form below to get your results

Battery Capacity (kWh)

Energy Consumption (kWh/mile)

Outside Temperature (°F)

-10 °F °F110 °F

Average Speed (mph)

25 mph mph85 mph

HVAC Usage

How This EV Range Calculator Works

This calculator helps you estimate the real-world rareal-worlreal-world rangereal-world range oranrange of your electrange of your erange of your electric vehicle under various driving conditions. While manufacturers provide estimated ranges, actual performance can vary significantly based on temperature, driving speed, and climate control usage.

The Calculation

The calculator starts with your EV's batbattery capacity anbattery cbattery capacitbattery capacity and divides it by your vehicle's eneenerenergy consumption energy consumption rate to find the theoretical ranrange. It then applrange. It then range. It then applies adjustment factors for temperature, speed, and HVAC usage to provide a more realistic estimate. For example, a 75 kWhkWh battery wikWh battery witkWh battery with 0.kWh battekWh battery withkWh battery with 0.3 kWh/mile consumption would have a theoretical range of 250 miles, but might achieve only 200 miles in cold weather with the heater running.

Key Variables

The most important variables affecting ranrange are battery crange are batterange are battery cbatbattery capacity (kbattery cbattery capacitbattery capacity (kWhkWh), energy ckWh), energy cokWh), energy consumkWh), enekWh), energy conkWh), eneneenerenergy consumption energy consumption (kWh/mile), outside temperature, average driving speed, and climate control usage. Battery capacity directly impacts range, while consumption varies by vehicle model and driving style. Environmental factors can reduce range by up to 40% in extreme conditions.

Assumptions

We assume that batbattery capacity isbattery cbattery capacitbattery capacity is usable capacity (not total capacity), and that eneenerenergy consumption energy consumption represents average driving. The calculator applies typical efficiency losses based on research data, but individual vehicles may perform differently. RanRange reductions arRange reductionRange reductions are more severe at temperature extremes (below 20°F or above 95°F) and at higher speeds (above 70 mph).