Petrol vs EV for high-mileage drivers: who saves the most?
The more you drive, the faster an EV pays for itself. Here is what high-mileage drivers need to know about fuel savings, charging strategy, and break-even timelines.
Mileage is the biggest lever in EV savings
The break-even calculation for an EV is straightforward: divide the extra upfront cost by the annual fuel saving. The more you drive, the larger the annual saving, and the faster you recoup the price premium. A driver covering 30,000 km per year will break even twice as fast as one covering 15,000 km on the same vehicles.
The numbers for a typical high-mileage driver
Consider a driver covering 30,000 km per year switching from a petrol car using 9 L/100km at $1.80/litre to an EV using 18 kWh/100km at $0.25/kWh. Annual petrol cost: $4,860. Annual EV charging cost: $1,350. Annual saving: $3,510. With a $10,000 EV price premium, the break-even point is under 3 years.
Use the calculator above to model your own distance. Change the annual distance preset to 'Very high' to see how savings scale at 25,000–30,000 km per year.
Charging strategy for high-mileage drivers
High-mileage drivers need to charge more frequently and should plan their charging strategy carefully. Home charging overnight is critical — relying on public DC fast chargers for the majority of charging will erode savings significantly. If home charging is not available, a workplace charging scheme or reliable en-route DC network is the next best option.
Fleet and business use
For businesses running high-mileage vehicles, the fuel saving case for EVs is often compelling. Additionally, many countries offer favourable tax treatment for electric fleet vehicles — lower benefit-in-kind rates, enhanced capital allowances, and reduced stamp duty. The combination of fuel savings and tax benefits can produce a very short payback period for fleet operators.
Considerations specific to high-mileage EV use
- Battery degradation is proportional to cycles, so high-mileage drivers will see more degradation — but manufacturer warranties typically cover 160,000 km
- Tyre replacement is slightly more frequent on heavier EVs
- Plan long routes using apps like ABRP or the car's built-in navigation to route through fast charging stops
- Consider time-of-use electricity tariffs to maximise home charging savings
See how much you could save
Use our free calculator to compare EV vs petrol running costs in under 2 minutes.