AustraliaCalculator

EV Charging Cost Calculator

Work out kWh required, charging time and cost to charge an electric vehicle at home or at a public charger.

Usable capacity is often a little less than the advertised total — check your vehicle specifications.

e.g. 7 kW home wallbox, 11–22 kW public AC, 50–350 kW DC fast charger.

Home electricity is typically 25–40c/kWh. Public AC and DC fast chargers are often 55–75c/kWh or more — check your retailer or charging network for current pricing.

Energy lost as heat while charging, typically 5–15%.

Enter your car's average consumption to see cost per 100km. Leave blank to skip.

Result

$13.20 to charge from 20% to 80%

Energy added to battery
36 kWh
Energy drawn from the grid (incl. losses)
40 kWh
Estimated charging time
5 hr 9 min
Charging cost
$13.20

Charging time assumes constant charger power. Most vehicles slow down after about 80% state of charge — especially on DC fast chargers — so charging to 100% usually takes longer than this straight-line estimate.

Assumptions and notes

  • Charging time assumes a constant charger power; real charging tapers, particularly above about 80% state of charge on DC fast chargers.
  • Home electricity and public charging pricing vary widely by retailer, network and state — enter the rate that applies to you.
  • Charging losses (energy lost as heat) typically range from 5–15% and vary by charger and vehicle.
  • Results are estimates only and are not financial, tax or legal advice.

Information last checked: August 2026.

Frequently asked questions

Is public charging more expensive than charging at home?

Usually yes. Home electricity is typically 25–40c/kWh depending on your plan, while public AC and DC fast chargers often charge 55–75c/kWh or more. Enter the price for wherever you're charging to compare.

Why does my car charge slower near a full battery?

Most EVs and DC fast chargers reduce charging speed above roughly 80% state of charge to protect the battery, so the last 20% often takes disproportionately longer than this estimate shows.

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