Calculate your result
Enter your figures below. Values stay in your browser.
How to use Battery Capacity / Range Calculator
- Enter your figures in the units shown beside each field. Keep monetary inputs in the same currency; money results are currently displayed in USD.
- Select the unit standard where the form offers a choice, then choose Calculate.
- Read the breakdown and compare the worked example below. Change one assumption to see its effect.
Formula used
Usable energy = battery capacity × usable percentage/100. Range km = usable energy ÷ consumption × 100.
Worked example
75 kWh × 90% = 67.5 kWh. At 18 kWh/100km that gives 375 km.
What the result means
If the capacity entered is already usable capacity, choose 100% to avoid deducting the buffer twice.
Check your result
Results retain calculation precision internally and round for display. Keep the input values with the result so you can reproduce it. Use Reset to restore the example inputs, or Copy result to copy the displayed answer.
If the result does not agree with your own calculation, report the page, inputs and expected answer. See our methodology and reference sources for the standards used.
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Formula, worked example and limitations updated September 10, 2026.