Free calculator
EV charging cost calculator
What one charge costs, and what a year costs, using your battery, your tariff and your mileage rather than an average from someone else's house.
Work it out
How much does it cost to charge an electric car?
Enter your battery size and at least one rate. Your electricity rates are on your bill, and public charging rates are shown at the unit and in the operator's app.
What does a charge cost?
Put in your own battery size and your own rates. Your rates are on your electricity bill, and public rates are shown in the operator's app.
Energy needed: 36.0kWh
60kWh battery, 20% to 80%
Enter at least one rate above to see the cost.
Over a year
Energy for 8,000 miles: 2286kWh
Enter a rate to compare.
Energy equals battery size multiplied by the change in charge. Cost equals energy multiplied by your rate. Charging losses of a few per cent are not included, so real figures run slightly higher.
Get a price for a home chargerThe method
How EV charging costs are calculated
Energy equals the battery size multiplied by the change in state of charge. A 60kWh battery taken from 20% to 80% moves 60% of 60kWh, which is 36kWh. Cost equals that energy multiplied by your rate per kWh.
Over a year the same arithmetic runs from mileage instead. Annual miles divided by your miles per kWh gives the energy, and energy multiplied by rate gives the cost. That is the number worth comparing against what you currently spend on petrol or diesel.
For what the difference between home and public charging actually comes from, read home vs public charging costs.
Next step
Know the running cost? Get the installation priced.
Send the postcode and we will come back with a fixed figure for the work.
Questions
Questions about charging costs
How do I calculate EV charging cost?
Multiply the energy you put in by your rate per kWh. Energy is your battery size multiplied by the change in state of charge, so a 60kWh battery taken from 20% to 80% needs about 36kWh.
How much does it cost to charge an electric car at home?
It depends entirely on your tariff. The same charge costs several times more on a standard day rate than on an overnight EV tariff, which is why this calculator asks for both instead of quoting an average.
How much cheaper is home charging than public rapid charging?
Substantially, and the gap is widest against motorway rapids. Public charging carries the cost of the hardware, the grid connection and the site, plus VAT at the standard rate against 5% at home.
How many miles per kWh does an electric car do?
Three to four miles per kWh is typical. Small cars do better, large SUVs worse, and cold weather reduces it noticeably. Use your own trip computer figure if you have one.
Does the calculator include charging losses?
No. A few per cent is lost as heat in the cable and the on-board charger, so real costs run slightly above the figure shown. The arithmetic is printed under the calculator so you can see exactly what it does.
Get a quote
Get your EV charger installation priced
Five fields. We reply with either a fixed price or the one thing we still need to know.
- No cost, and no obligation to book anything
- Your details are never sold on or passed around
- A fixed price for the work described, in writing
Would rather talk it through? Call 07487 696567.
