EV Range Calculator

Wondering how far your electric vehicle can go on its current charge? The EV Range Calculator helps you estimate your real-world driving range based on your battery size, current state of charge, and efficiency rating. Whether you’re planning a trip or just checking your daily range, this tool gives you a quick and easy way to predict how far you can drive before needing to recharge.

Battery Capacity (kWh):

State of Charge (%):

Efficiency (miles per kWh):

List of the Best Level 2 EV Charger:

Image	Product	Rating
	HomeFlex Level 2 EV Charger	Best Choice 5/5	View on Amazon label
	EVIQO Level 2 EV Charger	4.5/5	View on Amazon label
	EMPORIA Level 2 EV Charger	4.5/5	View on Amazon label

How to Use This EV Range Calculator?

1. Enter Battery Capacity

Start by entering your EV’s full battery capacity in kilowatt-hours (kWh). This is the total amount of energy your battery can store when fully charged. Most modern EVs range from 30 kWh to 100+ kWh.

2. Input State of Charge (%)

This is your current battery level as a percentage. For example, if your car is 80% charged, enter 80. The calculator will use this to determine how much energy is currently available for driving.

3. Enter Your Vehicle’s Efficiency

Input your EV’s efficiency in miles per kWh, which tells us how far your car can travel per unit of energy. Most electric vehicles average between 3.0 and 4.5 miles per kWh, depending on driving conditions.

4. Click “Calculate”

After entering your data, hit the Calculate button to see two key results:

Usable energy in kWh
Estimated range in miles

You can adjust the values anytime to simulate different charge levels, driving styles, or vehicles.

Frequently Asked Questions (FAQ)

What does this calculator estimate?

This tool estimates how far you can drive based on your battery’s available energy (based on current charge level) and how efficiently your EV uses that energy (miles per kWh).

What is miles per kWh and how do I find it?

Miles per kWh is a measure of energy efficiency — it tells you how many miles your EV can travel using 1 kilowatt-hour of electricity. You can find this in your vehicle’s trip computer, owner’s manual, or EPA rating. Real-world values depend on speed, terrain, temperature, and driving habits.

What if my car charges to 90% or 100% only sometimes?

You can simulate different charge levels. If you normally charge to 80%, use 80 as the State of Charge. For road trips where you might charge to 100%, input 100.

Is this the same as EPA range?

Not quite. EPA range assumes a full battery and average driving conditions. This calculator gives a customized estimate based on your current charge and your personal driving efficiency, which can be more realistic in day-to-day use.

Does this include climate or terrain effects?

This calculator does not account for external factors like cold weather, AC/heating use, hilly terrain, or aggressive acceleration. If you want to simulate a worst-case scenario, lower the efficiency value (e.g., 2.5 mi/kWh in winter).

Check out our EV charger reviews below.