How is the charging cost calculated?

The tool finds the kWh added by taking the percentage gained (to minus from) multiplied by your battery capacity, then multiplies that energy by your price per kWh. Charging losses are not included, so real-world cost may be slightly higher.

How is range gained estimated?

It divides the kWh added by your consumption figure (kWh per 100 km) and multiplies by 100. Lower consumption means more range per kWh.

Is my charging or pricing data uploaded?

No — every calculation runs entirely in your browser and nothing is uploaded.

EV Charging Cost Calculator

Work out the cost of charging your electric car from any % to any %.

EV charging cost calculator

Find out what it costs to charge your electric car. Enter your battery capacity, the percentage range you are charging (say 20% → 80%), and your electricity price per kWh.

The calculator shows the cost, the kWh added, and an estimate of the range gained from your consumption figure. It all runs in your browser, so nothing about your car or tariff is uploaded.