kWh per 100km × your rate
An EV uses roughly 15–20 kWh per 100km. Multiply by your charging rate (c/kWh) and you have the cost. Efficient driving helps a little; your rate helps a lot.
Enter how far you drive and how you charge, and see your yearly home-charging cost — and how much you save versus petrol.
Indicative only. The single biggest lever is your charging rate — an EV or off-peak plan can cut home charging to a fraction of petrol.
An EV uses roughly 15–20 kWh per 100km. Multiply by your charging rate (c/kWh) and you have the cost. Efficient driving helps a little; your rate helps a lot.
A dedicated EV or off-peak overnight window can cut your rate to a fraction of the daytime price. Charge from your own solar surplus and it's effectively free. See the best EV plans.
Petrol at ~$1.95/L in an 8L/100km car is about $15.60 per 100km. Home charging often lands under $5 — and under $2 on a cheap overnight plan. The gap over a year is large.
The rate you charge at decides everything. Upload a bill and EnergySorted compares EV and off-peak plans on your actual usage — so overnight charging is costed properly.
It depends almost entirely on your charging rate. At a typical 33c/kWh home rate an efficient EV costs around $5 per 100km; on a dedicated EV or off-peak plan (~8c) that drops to roughly $1.30 per 100km — a fraction of petrol. Use the calculator with your own numbers.
Almost always at home — often dramatically so, especially on off-peak or an EV plan, or free from your own solar. The calculator compares your EV charging cost against the same distance on petrol so you can see the yearly gap.
From your own excess solar (effectively free), then a dedicated EV/off-peak overnight tariff. Being on the right electricity plan is the single biggest lever — a plan with a cheap overnight window can more than halve your charging bill.
Most EVs use about 15–20 kWh per 100km. So 250km a week is roughly 40 kWh — the calculator turns that into a dollar figure at your rate, and a yearly total.
Not required, but a plan with a cheap off-peak or dedicated EV window makes a big difference. EnergySorted compares EV-friendly plans on your real usage so overnight charging is costed properly, not hidden behind a headline rate.