Compare total ownership from your numbers
EV vs Petrol/Diesel Cost Calculator
Compare purchase, energy, fuel, maintenance, insurance and optional battery replacement costs year by year.
Smart result
Your ownership comparison will appear here
Enter both vehicles' prices and running assumptions. No current fuel, vehicle, insurance or maintenance price is assumed.
Understand the calculation
Cost per kilometre covers energy or fuel. Total ownership also includes the purchase price and the maintenance and insurance values you enter. Break-even occurs when cumulative EV cost becomes lower than cumulative petrol or diesel cost.
Results are planning estimates. Real vehicle use, tariffs, charging conditions and solar production vary.
Frequently asked questions
Is an EV cheaper to run?+
It depends on efficiency, electricity and fuel prices, charging losses and usage. This calculator uses the values you enter.
How is break-even calculated?+
The model checks cumulative ownership cost each year and estimates where the EV recovers any upfront price premium.
Does monthly driving affect EV savings?+
Yes. More driving magnifies the difference between energy costs per kilometre.
Are maintenance costs included?+
Yes, using your separate annual values for each vehicle.
Is battery replacement included?+
Only when you explicitly enter a cost and replacement year. It is disabled by default.