Electric Car Charging Cost Calculator
Calculate a full charge or a partial top-up, cost per mile or kilometre, and your monthly energy budget using your own electricity tariff.
Your results
Transparent by designA clearer picture starts here.
Review the example inputs, then calculate. We show the assumptions alongside your result.
Why is this an estimate?
The same loss assumption is used for optional tariff comparisons. Your actual loss, tariff, subscription fees and idle charges can differ.
Read our methodologyEVVerity estimates are informational and are not a substitute for a professional battery diagnostic or pre-purchase vehicle inspection.
Compare your monthly charging budget
Use your home/public mix to check charging tariffs, subscription break-even and home charger payback.
Compare home and public charging →See how the calculation works
The same loss assumption is used for optional tariff comparisons. Your actual loss, tariff, subscription fees and idle charges can differ.
Example: electricity bought is not all stored in the battery
A 60 kWh usable pack charged from 20% to 80% gains 36 kWh. At an assumed 10% loss of grid energy, it draws 40 kWh. At an illustrative price of 0.25 per kWh, the session costs 10 in the selected currency. Monthly and annual energy costs use the driving-distance input, not a fixed number of these sessions.
Where to get useful inputs
- Copy the relevant per-kWh price from your bill or charging payment screen.
- Enter prices yourself; changing currency does not perform a currency conversion.
- Public AC and DC comparisons use the same loss assumption. Add parking, connection or subscription charges separately.
Why not just add 10% to battery energy?
Here, losses are a share of the energy drawn from the grid. To deliver 36 kWh when 90% reaches the battery, divide 36 by 0.90. Multiplying by 1.10 describes a different definition of losses.
Method and examples reviewed . Vehicle specifications carry their own source dates.
Methodology, assumptions & confidence →Compare a session with an average month
Original EVVerity worked scenario. Inputs are illustrative, not measured vehicle results or market prices.
- Enter capacity 60 kWh, start 20%, target 80%, loss 10% and tariff 0.25. The session adds 36 kWh to the battery, buys 40 kWh and costs 10 in your selected currency.
- Set annual distance to 12,000 km and consumption to 18 kWh/100 km. The average month buys 200 kWh and costs 50 at that tariff.
- Change tariff to 0.65: the same session costs 26 and the average month costs 130. Use the tariff comparison tool for a mix of locations and fees.
What the result helps you decide
A cheap session does not establish a cheap monthly budget. Distance, consumption and the share of public charging determine how often and where you buy energy. Prices here are illustrative.
Calculate home, public and subscription charging costs →Example checked .
EV charging cost per mile: use your tariff and efficiency
For battery-side miles per kWh, electricity cost per mile = price per kWh ÷ [miles per kWh × (1 − charging-loss fraction)]. For example, $0.18/kWh, 4 miles/kWh and an assumed 10% loss give $0.05 per mile. Change to Imperial units above to enter miles/kWh. The currency selector changes the label; it does not convert money.
The figures below are hypothetical prices, not current tariffs or a ranking of charging networks. They hold efficiency and losses constant to isolate the price difference.
| Electricity price | Energy cost per mile | Energy cost for 100 miles |
|---|---|---|
| $0.18/kWh | $0.050 | $5.00 |
| $0.40/kWh | $0.111 | $11.11 |
| $0.65/kWh | $0.181 | $18.06 |
How many kWh does a full charge or a 20–80% top-up use?
Battery energy added is usable capacity multiplied by the charge-percentage change. Billed energy is higher when the specified loss assumption applies. Do not use a gross pack rating as though all of it were available to the driver.
With an illustrative 60 kWh usable pack and 10% losses, 20–80% adds 36 kWh and buys 40 kWh; 10–80% adds 42 kWh and buys about 46.7 kWh; 0–100% adds 60 kWh and buys about 66.7 kWh. At an assumed £0.25/kWh, these cost £10, £11.67 and £16.67. A full-charge calculation is a comparison boundary, not a daily charging recommendation.
Monthly EV charging cost comes from mileage
At an illustrative 12,000 miles a year and 4 battery-side miles/kWh, driving consumes 3,000 kWh. With 10% losses, billed electricity is about 3,333 kWh. At an assumed $0.18/kWh, that is $600 a year or $50 per average month. Real months vary with distance, weather and charging location.
The same arithmetic works in GBP: enter 0.25 for 25p/kWh. A wall-energy or EPA label value can already include charging losses. Applying another loss adjustment to the same energy boundary would overstate the cost. Session, parking and idle fees need separate attention.
Sources for the additional guidance
Reviewed . References are scoped to the statements above; viewing questions are EVVerity editorial guidance.
Keep the picture in focus
All tools →Read the relevant evidence
- How much does it cost to charge an electric car?
- Compare UK home charger installation quotes
- Can You Own an Electric Car Without Home Charging?
- Does Fast Charging Damage an EV Battery?
- How Long Does It Take to Charge an Electric Car? AC and DC Worked Examples
Apply this to a model
Check the model’s battery references, charging equipment and viewing checklist. Match the year and original market to the car you are considering.