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EV Range Estimator
Multiplies usable battery energy after reserve by miles-per-kWh efficiency to estimate range in miles and kilometers.
Limitation: This is a static energy worksheet.
How to Estimate EV Range
Enter the usable capacity and an efficiency you measured or expect.
Enter usable battery kWh (exclude unavailable pack buffer if your vehicle reports it separately).
Derive miles per kWh from a trip
Miles driven ÷ kWh consumed on that trip is a practical efficiency input.
What the EV Range Result Means
The estimate assumes constant efficiency and a simple percentage reserve. It is not a navigation ETA or a certified WLTP/EPA range.
EV Range Examples
60 kWh with 10% reserve
Entered battery assumptions
Estimated range
54 kWh usable × 3.5 mi/kWh = 189 miles.
No reserve highway scenario
Entered battery assumptions
Estimated range
Full usable capacity times efficiency with zero reserve.
Pair with charging cost
Use the EV charging cost calculator for electricity spend once distance is known.
Frequently Asked Questions
Still have questions about this calculation?
Try the CalculatorEV Range Formulas
No temperature derate or regenerative-braking model is applied.
Formula
Usable energy
usable battery kWh × (1 − reserve% ÷ 100)
Range in miles
usable energy × miles per kWh
Range in kilometers
range miles × 1.609344
Scientific Background
Assumptions: constant mi/kWh and a flat reserve. Limitations: cold weather, high speed, hills, towing, and cabin heat can change energy use substantially.
Sources & review
EV Range Estimator documents the references behind its formulas and assumptions. Always treat results as educational estimates, not personalized professional advice.
Last reviewed
July 22, 2026
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