EV Charging Cost Calculator
Calculate what it costs to charge your electric vehicle at home using battery size, charge percentage, electricity tariff, and charger losses.
Key takeaways
- Home EV charging cost depends on battery size, charging window, and electricity price.
- Charging losses matter, especially on slower AC charging setups.
- Weekly and annual cost estimates are useful for comparing EV running costs against petrol bills.
Vehicle and charge setup
Charging assumptions
Charging cost snapshot
$12.28
estimated cost per charging session
Weekly cost
$24.55
Monthly cost
$106.68
Annual cost
$1,276.70
Energy required
- Battery energy added37.2 kWh
- Energy drawn from wall40.9 kWh
How to use this result
- Lower the target charge to 80% if you usually top up rather than full-charge.
- Increase charger losses slightly if you mostly use standard powerpoint charging.
- Use the annual figure to compare home charging against public DC fast chargers.
How should you read the EV charging result?
The cost per session is the most useful number when you top up the car with a regular charging pattern, such as twice a week from 20% to 80%.
Use the annual estimate when building a total cost of ownership model for your EV, especially if you are deciding whether off-peak charging or solar exports could lower costs further.
What should you compare next?
FAQ
EV charging calculator questions
Does this include charging losses?
Yes. The charger loss input adds extra wall energy on top of the battery energy added so the session cost reflects real home charging.
Can I estimate from 20% to 80% only?
Yes. Set the current and target state of charge to the top-up window you usually use, rather than forcing a full 0% to 100% charge.
Why use sessions per week?
It turns one charging event into weekly, monthly, and annual cost estimates, which is useful when comparing EV ownership costs against fuel spend.