EV Range Estimate
Estimate real-world driving range from battery size and efficiency.
About EV Range Estimate
Usable energy is the battery capacity reduced to the depth of discharge you run down to. Dividing that energy by the per-mile consumption yields the driving range. Advertised ranges assume ideal conditions, so scaling by efficiency and a realistic discharge window gives a much truer everyday range.
Formula
EV Range Estimate
Range = usable battery x depth of discharge / (efficiency / 100)
- depth of discharge
- Share of the battery used between charges
Worked example
With the default values below, EV Range Estimate returns Estimated Range of 216. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Usable batteryminimum 0 kWh
- 60 kWh
- Efficiencyminimum 0.1 kWh/100mi
- 25 kWh/100mi
- Usable depth of dischargeaccepts 1–100 %
- 90 %
Results
- Estimated Range
- 216 mi
- Energy per Mile
- 0.250 kWh/mi
- Reserve Battery
- 6.0 kWh
Step by step
- 1Values used
- 2EV Range Estimate
- 3Estimated Range= 216 mi
- 4Energy per Mile= 0.250 kWh/mi
- 5Reserve Battery= 6.0 kWh
Assumptions and limits
- The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax or compounding frequency into account.
- Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is EV Range Estimate calculated?
Range = usable battery x depth of discharge / (efficiency / 100) Usable energy is the battery capacity reduced to the depth of discharge you run down to. Dividing that energy by the per-mile consumption yields the driving range.
Why does EV Range Estimate matter?
Advertised ranges assume ideal conditions, so scaling by efficiency and a realistic discharge window gives a much truer everyday range.
What values do I need to enter?
This calculator takes 3 inputs: Usable battery, Efficiency, Usable depth of discharge. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.