How much does an EV cost per 100 km?
Divide annual charging cost by annual kilometres and multiply by 100. This is electricity cost only; purchase price, servicing and other ownership expenses belong in the ownership comparison.
EV CHARGING COST CALCULATOR AUSTRALIA
EV Charging Cost
Calculator Australia
Estimate annual and monthly EV charging costs and cost per 100 km using your own Australian electricity tariff, driving distance and vehicle efficiency. Choose the single-charge tool for cost and time between two battery levels, or compare EV and petrol ownership costs. Replace the starting inputs with your figures; these are estimates, not a predicted bill.
Start calculating →4practical tools
100%editable inputs
0hidden formulas
START WITH YOUR SITUATION
What do you need help with today?
Choose a practical question. We will take you to an existing guide or tool, not a generic recommendation.
BuyCheck home charging before comparing vehicles.ChargeUnderstand the rate and setup behind home charging.SaveUse your own figures to compare running costs.DriveEstimate the time and cost of a charging session.CareUse a practical safety check before routine home charging.EV + SolarCompare one charging session with your solar figures.
FOUR PRACTICAL TOOLS
Start with the EV or home-energy question
you want to understand.
Use your own driving, electricity, fuel and rooftop-solar figures. Every input is editable. Results are planning estimates, not financial advice.
LIVE CALCULATOR
EV charging cost calculator
All amounts are AUD. Australian reference inputs are sourced, dated and editable.
Plan your yearly charging
Start with where you charge and what you pay. Your public charging share is calculated automatically. Select any input, or use Tab to reach it, then replace the value.
Public charging share%20
Fine-tune this estimate
Charging loss is the small difference between electricity drawn from the grid and energy stored in your battery. The default 10% is an editable planning assumption, not a measured or universal loss rate.
Your estimated annual charging cost$750$63 / month
At home$5171,558.9 kWh · 80%
Public charging$234389.7 kWh · 20%
Cost per 100 km$7
Annual electricity from grid1,948.7 kWh
Effective home price$0.331 / kWh
Public charging price$0.600 / kWh
Estimate notice: Actual charging costs may vary with your tariff, charging mix, driving conditions, vehicle efficiency and public charging prices. Use this as a planning guide, not financial, tax or retailer advice. Check your current plan and vehicle details.
Methodology: Costs use your entered assumptions. The reference profile identifies its source, date and scope; other defaults remain editable planning assumptions. TCO is a simple nominal-dollar comparison: purchase price − resale value + operating costs + total finance cost. It excludes tax, inflation, incentives and opportunity cost.
HOW THE ESTIMATE WORKS
How EV charging cost is calculated
For one charge, the basic calculation is electricity drawn from the grid × your electricity price. The calculator adjusts battery energy for the charging-loss percentage you choose, then keeps home and public charging prices separate.
For a yearly estimate, enter your annual distance, EV efficiency and charging mix. This avoids assuming that battery size, a national average tariff or one public-charging price represents your situation.
Grid energy = battery energy ÷ (1 − loss ÷ 100). A 10% loss input means 90% of grid electricity reaches the battery in this model. For yearly driving, battery energy = kilometres ÷ 100 × kWh per 100 km. The yearly cost applies your home and public shares and rates separately.
Which estimate do you need?
The EV running-cost tool shows annual, monthly and per-100-km charging costs. Single-charge cost & time uses usable battery capacity and the change in battery percentage; its time estimate assumes the entered power stays constant. EV vs petrol / hybrid compares purchase and running costs, with optional ownership expenses and resale. It does not calculate tax benefits.
Read the Australian home charging cost guide →EV charging cost questions
Is home EV charging cheaper than public charging?
Compare your actual home usage rate with the public site price, including any separate session, parking or idle fees. The calculator models the entered energy prices; it does not add those other fees.
Can I charge using off-peak electricity?
If your plan offers an off-peak rate, match charging to the stated hours. Open Fine-tune this estimate in the yearly tool to enter peak and off-peak rates and the share charged off-peak.
How is EV charging cost calculated?
Multiply the electricity drawn from the grid by the price you pay per kilowatt-hour. Allow for charging loss when converting energy stored in the battery to electricity drawn.
Can I use my own Australian electricity rate?
Yes. Enter the usage rate from your bill and, if relevant, use the peak and off-peak fields to match when you normally charge.
Does the calculator include public charging?
Yes. The yearly calculator separates home and public charging, while the single-charge tool estimates one charging session from your battery, target level, price and charger power.
Extension lead safetyCharging from a power pointPublic charging pricesSolar and off-peak chargingCompare EV and petrol running costs
Illustrative charging costs
These are invented scenarios for electricity drawn from the grid, not vehicle specifications or Australian average tariffs. If the kWh figure is energy added to the battery instead, allow for charging loss first. All amounts are AUD and exclude other fees.
| Grid energy | $0.20/kWh | $0.30/kWh | $0.40/kWh |
|---|---|---|---|
| 40 kWh | $8 | $12 | $16 |
| 60 kWh | $12 | $18 | $24 |
| 80 kWh | $16 | $24 | $32 |
For example, adding 60 kWh to a battery with an illustrative 10% loss requires about 66.7 kWh from the grid. At an example $0.30/kWh, the energy cost is $20.
Home, off-peak and public charging
Home: use the usage rate on your bill. Off-peak: use that rate only for electricity charged within the plan’s stated window. The yearly tool can weight your peak and off-peak charging shares.
Public AC and DC: enter the site’s displayed energy price and check other fees separately. A charger’s rated power is not a guaranteed charging speed. Compare your own home and public prices rather than assuming a fixed saving.
AUSTRALIAN PETROL PRICE CONTEXT
Petrol prices move. Your comparison should too.
Use your local bowser price in the calculator. This ACCC context shows why a single national default is only a starting point.
The August reference is an official daily average across Sydney, Melbourne, Brisbane, Adelaide and Perth — not a quote for your suburb or the whole month.
Selected ACCC price snapshotsRegular unleaded · c/L
Five-largest-capital-cities average. Quarterly observations are shown for 2025; 2026 points are dated daily snapshots. This is a context chart, not a continuous monthly series.START WHERE YOU ARE
One clear next step.
No homework first.
You do not need to know every EV or home-energy detail before you begin. Pick the situation that sounds most like you; we will take you to one useful answer.
Thinking about an EV?
Start with whether home charging can work for your routine — before comparing cars or equipment.
Check home charging →Waiting for your EV?
Use the electricity rate on your bill to get a practical home-charging cost — no retailer comparison required.
Estimate home charging cost →Already driving?
See what your own home and public charging mix could cost across a year.
Calculate yearly charging cost →Have rooftop solar?
See how one EV charging session could line up with the solar generated at home.
Explore Solar + EV Charging Match →