EV charging cost and time calculator●
Charging cost and time, trip cost, and petrol versus electric in one place.
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Know the cost before you plug in
Enter the battery size, the charge you start and stop at, the charger power and the price per kWh to see the cost and the time. Use Trip cost for a journey, and Petrol vs electric to see what you would save in a year. Pick a car from the list to fill in a typical consumption, or type the figure you see on your own dashboard. The car lists use open data from the Dutch vehicle authority RDW: the official test figures of about ten million cars registered in the Netherlands, from old cars to new, averaged per model (electric figures are counted at the socket). Real use is usually higher, especially in winter and on motorways, and plug-in hybrids depend on how often they are charged, so treat the figures as a starting point and replace them with your own if you know it.
Fuel cost calculator →Common questions
How is the charging cost worked out?
The battery energy added is the battery size times the percentage you charge. Charging losses are added to get the energy taken from the socket, and that is multiplied by your price per kWh.
How much does an electric car cost per mile?
Multiply the car's consumption by your price per kWh. A car using 0.30 kWh per mile at 0.15 per kWh costs 0.045 per mile. The calculator shows the cost per km and per mile for any car, price and charging losses.
Why does charging take longer than the calculator says?
The time assumes the charger gives its full power all the time. Most cars slow down the charge rate above about 80%, in the cold, and on chargers that share power between cars. Charging from 10 to 80% is the common fast-charging case.
What are charging losses?
Some energy is lost as heat in the charger, the cable and the battery. Home charging usually loses 8 to 15%, so you pay for more energy than reaches the battery.
Is an electric car really cheaper to run than petrol?
Energy for an electric car usually costs less per km, especially at home prices. On fast public chargers the price per kWh is often two to three times higher, so the gap can almost close. Use the Petrol vs electric tab with your own prices.
Where do I find my car's consumption?
Look at the trip computer, or divide the kWh you charged by the kilometres you drove. The figure on the dashboard leaves out charging losses, so add about 10% to match what you pay.