EV Range Calculator

Estimate EV range from usable battery energy and consumption per kilometre. Enter your own values below to see estimated remaining range and check the method behind it.

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Your inputs

Change the example values to match your situation.

Your result

Let’s work it out.

Fill in your inputs and select Calculate.
Your result and breakdown will appear here.

How this calculator works

Range = usable battery capacity × charge fraction ÷ kWh per 100 km × 100.

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What is EV Range Calculator?

EV Range Calculator helps you estimate EV range from usable battery energy and consumption per kilometre.

The main result is estimated remaining range. The formula, example and assumptions below explain how to interpret it.

How to use EV Range Calculator

Use the example to get familiar with the form, then enter your own figures. Any rates in the example are illustrative. Check the field labels and units before calculating.

  1. Gather usable battery capacity (kWh), available state of charge (%) and energy consumption (kWh/100 km). Use values from the same situation or reporting period.
  2. Replace the example usable battery capacity with your own value, then complete the other fields. Check the displayed units.
  3. Select Calculate and read estimated remaining range. Change one input and calculate again to compare a second scenario. Reset restores the original example.
  • Enter usable battery capacity in kWh, at least 0. Decimals are accepted.
  • Enter available state of charge in %, at least 0 and at most 100. Decimals are accepted.
  • Enter energy consumption in kWh/100 km, at least 0.000001. Decimals are accepted.

EV Range Calculator: a worked example

With the inputs below, the result is 266.666667 km (estimated remaining range). Follow the example, then replace these illustrative values with your own.

Example inputs and output
Input or outputExample value
Usable battery capacity (kWh)50 kWh
Available state of charge (%)80 %
Energy consumption (kWh/100 km)15 kWh/100 km
Estimated remaining range266.666667 km

Understanding the EV Range result

The main output is estimated remaining range, expressed in km. It applies to the inputs and operation you selected.

Displayed results use a readable number of decimal places. When checking a result by hand, keep extra precision until the last step. To compare scenarios, change one input at a time and keep the others fixed.

EV Range Calculator: assumptions and common mistakes

A useful estimate starts with the right inputs. Check the following assumptions and limits before applying the result to your situation.

  • Use mileage from comparable driving conditions. A fuel-only comparison excludes financing, maintenance and resale unless those amounts are specifically entered.

For wider guidance, visit Bureau of Energy Efficiency. The formula and scope of this specific tool are stated on this page.

EV Range Calculator FAQs

What does EV Range Calculator calculate?

EV Range Calculator helps you estimate EV range from usable battery energy and consumption per kilometre. Its main output is estimated remaining range in km.

What inputs do I need for EV Range Calculator?

You need usable battery capacity (kWh), available state of charge (%) and energy consumption (kWh/100 km). Use the field labels and units to match your figures to the formula.

Which formula does EV Range Calculator use?

Range = usable battery capacity × charge fraction ÷ kWh per 100 km × 100.

What is a worked example for EV Range Calculator?

Example inputs: Usable battery capacity: 50 kWh; Available state of charge: 80 %; Energy consumption: 15 kWh/100 km. The result is 266.666667 km (estimated remaining range).

How should I enter usable battery capacity?

Enter usable battery capacity in kWh, at least 0. Decimals are accepted.

How do I choose available state of charge?

Enter available state of charge in %, at least 0 and at most 100. Decimals are accepted. The example uses 80 %; replace it if your circumstances differ.

How should I read estimated remaining range?

The main output is estimated remaining range, expressed in km. It applies to the inputs and operation you selected.

Why might my EV Range Calculator result differ from my records?

Use mileage from comparable driving conditions. A fuel-only comparison excludes financing, maintenance and resale unless those amounts are specifically entered. Differences in entered values, units or rounding can also change the comparison.

Can I compare two scenarios in EV Range Calculator?

Yes. Note your first estimated remaining range, change usable battery capacity or another input, and select Calculate again. Editing a field clears the old result so it is not mistaken for a new calculation.

Is EV Range Calculator free, and where are my inputs calculated?

This calculator is free to use without signing in. Its formula runs in your browser; calculator inputs are not sent to a calculation API. The inputs reset to the example values when you reset the form or start a fresh page.