What charging an electric car really costs
Enter how far you drive, your car's consumption and the price per kWh. Add a petrol figure if you want the comparison.
Charging is not perfectly efficient, so the grid delivers more energy than the battery keeps. Add a loss percentage if you know it. Fast charging and very cold weather usually make the real figure worse.
Your electricity price matters more than anything else here. Home tariffs and public rapid chargers can be far apart, so run the numbers with the price you actually pay.
Energy cost only, in whatever currency you enter. Real consumption changes with speed, temperature and traffic.
Estimates for general information only, not professional or legal advice. Check your owner's manual, a qualified mechanic and current official rules before relying on a result.
Example
A car using 15 kWh per 100 km with 10 percent charging loss, at 0.30 per kWh, costs 5.00 per 100 km. Over 12,000 km that is 600. A petrol car at 6.5 L/100 km and 1.60 per liter costs 1,248 over the same distance, so the difference is 648.
Questions
How do I calculate the cost to charge an electric car?ShowHide
Multiply the kWh you use per 100 km by your price per kWh, then adjust for charging loss and your distance.
Does this include maintenance or depreciation?ShowHide
No. It compares energy cost only. For a wider picture, use the cost per kilometer tool with your real bills.
Are my numbers saved?ShowHide
No. Nothing is stored when you leave this page.