EV Electricity Cost Per kWh Calculator
Convert your electricity rate into practical EV charging costs. See what a full battery charge costs at any price per kWh and compare across all charging price tiers — from cheap off peak home rates to ultra rapid public chargers.
Electricity cost per kWh
Typical EV electricity cost in Australia
This table shows the full charge cost, cost per kWh and cost per 100 km at each electricity price commonly available in Australia. Use it as a quick reference for comparing home, public and fast charging rates.
How this calculator works
This calculator converts your electricity rate into practical EV charging costs. Enter your battery size and electricity price to see what a full charge costs, the cost per kWh you are paying, and the cost per 100 km. It shows results at every common price tier so you can compare home, public and fast charging at a glance.
Formulas
Full charge cost = Battery size (kWh) × Electricity price ($ per kWh)
Cost per kWh = Electricity price ($ per kWh)
Cost per 100 km = EV efficiency (kWh per 100 km) × Electricity price ($ per kWh)
Worked example
Battery size: 75 kWh
EV efficiency: 16 kWh per 100 km
Electricity price: $0.30 per kWh (Home standard rate)
Full charge cost: 75 × $0.30 = $22.50
Cost per kWh: $0.30
Cost per 100 km: 16 × $0.30 = $4.80
The EV efficiency used for the cost per 100 km comes from your saved vehicle if one is selected, otherwise the default of 16 kWh per 100 km is used.
Price preset guide
Frequently asked questions
Does electricity price affect EV running cost significantly?
Yes. Electricity price is one of the two main factors that determines EV running cost, along with vehicle efficiency. Charging at an EV off peak rate of $0.08 per kWh instead of a standard rate of $0.30 per kWh can reduce fuel cost by around 70 percent. On the other hand, relying heavily on public DC fast chargers at $0.65 per kWh or more can significantly reduce or eliminate the cost advantage over petrol for some vehicles.
How much does a full charge cost?
The cost of a full charge depends on your battery size and the electricity price. A 75 kWh battery charged at the EV off peak rate of $0.08 per kWh costs just $6.00. The same battery at the home standard rate of $0.30 per kWh costs $22.50, and at a public DC fast charger rate of $0.65 per kWh it costs $48.75. This calculator shows the full charge cost at every common price tier so you can compare.
Is home charging cheaper than public charging?
Charging at home using a residential electricity tariff is typically much cheaper than public charging. Public charging includes the cost of installing, maintaining and operating charging infrastructure, which increases the price compared with home electricity. Because of this, most EV owners do the majority of their charging at home and use public chargers mainly for convenience or long distance travel.
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