EV Charging Cost Calculator
Estimate what it costs to charge your electric vehicle at home or public stations per kWh and per charge with this free EV charging cost calculator.
Enter Values
How to use this calculator
- Enter battery capacity, start and end charge %, your electricity rate and charger efficiency.
- Read the energy used and cost.
How it works
Battery energy = capacity × (end − start) ÷ 100; grid energy = that ÷ efficiency; cost = grid energy × rate.
Worked example
60 kWh, 20→80%, $0.30/kWh, 90%. ≈ 40 kWh from the grid → about $12.
Tips
- Estimate only.
Frequently asked questions
Why include efficiency?
Some energy is lost as heat when charging, so the grid draws a bit more than reaches the battery.
Privacy?
Runs entirely in your browser. Your inputs are not saved or transmitted.
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Cite this tool
Zerdly. (2026). EV Charging Cost Calculator. Retrieved from https://www.zerdly.com/tools/ev-charging-cost-calculator/
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.