Plan travel distance from battery and route conditions. Adjust losses, reserve, and driving profile instantly. Get practical range estimates for every trip scenario today.
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| Scenario | Battery kWh | Usable % | Reserve % | Speed km/h | Grade % | Wind km/h | Aux W | Temp % | Style % |
|---|---|---|---|---|---|---|---|---|---|
| City Mixed | 60 | 95 | 10 | 45 | 0 | 5 | 700 | 103 | 100 |
| Highway Calm | 75 | 92 | 10 | 90 | 0 | 0 | 900 | 100 | 102 |
| Winter Highway | 75 | 92 | 15 | 100 | 1 | 12 | 1800 | 118 | 108 |
| Hilly Commute | 50 | 90 | 12 | 60 | 3 | 8 | 1000 | 106 | 100 |
This estimator combines rolling resistance, aerodynamic drag, road grade demand, and auxiliary electrical loads to estimate energy use per kilometer. It then divides available trip energy by adjusted energy consumption.
This is an engineering estimate. Real-world range changes with tire pressure, stop frequency, road surface, battery age, and HVAC settings.
Range forecasting begins with usable battery energy, not pack size. In this calculator, trip energy equals battery capacity multiplied by usable percentage, then reduced by the arrival reserve. For example, a 75 kWh pack at 92% usable and 10% reserve provides 62.1 kWh for distance planning. This baseline makes route estimates consistent across drivers, because reserve policy is explicitly defined before speed, terrain, and weather assumptions are applied.
Aerodynamic demand rises quickly at highway speed, so velocity is usually the strongest range variable on open roads. The calculator combines drag coefficient, frontal area, air density, and wind speed to estimate aerodynamic power. A headwind effectively increases airspeed and raises Wh per kilometer, while a tailwind reduces demand. Comparing scenarios at 80, 100, and 110 km/h helps engineers set practical cruising targets for efficient, repeatable trip performance.
Mass, rolling resistance, and road grade shape the second major energy component. Rolling losses increase with vehicle and payload weight, while grade adds gravitational force that can dominate hilly routes. The calculator separates rolling, aerodynamic, and grade power so users can see what is driving consumption. This is useful for fleet planning, where payload balancing, tire selection, and route changes may deliver more range improvement than battery upgrades alone.
Auxiliary loads and environmental conditions explain much of the gap between laboratory figures and field results. Cabin heating, air conditioning, battery thermal management, and lighting can add meaningful electrical demand during long trips. This calculator includes auxiliary power plus temperature and driving style factors, allowing conservative modeling for winter or aggressive use. Teams can apply standard factors to compare routes consistently without building complex telemetry models during early planning.
The valuable practice is comparing multiple scenarios instead of relying on one range number. Use normal, conservative, and worst-case inputs, then plan charging stops around the lowest credible result. The calculator also reports kWh per 100 km and total demand power, which support charger selection and schedule planning. When trip logs are reviewed regularly, the input factors can be calibrated, improving forecast accuracy and operational confidence over time.
Use a reserve that matches your charging risk. Ten percent is common for normal trips, while 15% to 20% is safer for unfamiliar routes, cold weather, or limited charger availability.
Start with 500 to 900 W for mild conditions and increase for heating or cooling. Winter highway driving with cabin heat and battery conditioning can exceed 1,500 W.
Yes. Downhill grade demand can become negative, and the estimator applies the regenerative recovery factor to represent partial energy recovery instead of assuming perfect efficiency.
Aerodynamic power rises sharply with airspeed, and headwind increases effective airspeed further. That means higher cruising speed usually increases Wh per kilometer much faster than drivers expect.
Yes. Create standard scenarios for city, highway, winter, and loaded trips. Then compare range, kWh per 100 km, and demand power to define charging stops and dispatch rules.
Compare calculated consumption with trip logs, then tune auxiliary load, temperature factor, and driving style factor. Small calibration updates usually improve future forecasts more than changing one input dramatically.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.