About the Vehicle: EV vs Gas Calculator

The shift from petrol and diesel vehicles to electric cars is one of the defining economic transitions of our time. But the right choice for any individual depends on far more than environmental values — it involves purchase price, government incentives, fuel costs, insurance, maintenance, driving patterns, and how long you plan to keep the vehicle. This calculator gives you a rigorous, personalised cost comparison so you can make a decision based on your actual numbers.

How the calculation works

The calculator models the total cost of ownership (TCO) for both an electric vehicle and a petrol/diesel equivalent over your chosen ownership period. It accounts for the net purchase price after any government incentives, financing costs if you take a loan, annual fuel or electricity costs based on your driving distance and local prices, insurance, maintenance, and the declining resale value of both vehicles over time. The chart shows the cumulative running total year by year, making the break-even point immediately visible.

Key factors that determine which vehicle wins

• Purchase price gap: EVs typically cost more upfront. The larger this gap, the longer it takes for running cost savings to make up the difference.
• Government incentives: Many countries offer purchase subsidies, tax credits, or registration fee waivers for EVs. These can dramatically close the upfront cost gap.
• Annual mileage: The more you drive, the faster EV fuel savings accumulate. High-mileage drivers typically reach break-even much sooner.
• Electricity vs fuel price: In countries with cheap electricity and expensive petrol, EVs win faster. In markets with expensive electricity or cheap fuel, the gap narrows.
• Maintenance costs: EVs have significantly fewer moving parts — no oil changes, fewer brake replacements (due to regenerative braking), no exhaust system. This typically saves 30–50% on maintenance over the vehicle's life.
• Depreciation: EV resale values are still evolving. In some markets EVs hold value well; in others, rapid model improvements cause faster depreciation.

Common misconceptions about EV costs

• Assuming home charging is the only option — public fast charging is more expensive per km and affects the running cost comparison significantly if used frequently.
• Ignoring the cost of home charger installation, which can range from a few hundred to over a thousand depending on your electrical setup.
• Overlooking insurance differences — EVs often cost more to insure due to higher repair costs for battery systems.
• Assuming all EVs have the same efficiency — real-world consumption varies significantly between models and driving styles.

Environmental considerations beyond cost

While this calculator focuses on financial costs, it is worth noting that the carbon footprint of an EV depends heavily on your electricity grid's energy mix. In countries powered largely by renewables, EVs are dramatically cleaner over their lifetime. In grids still dominated by coal, the advantage is smaller but still present when accounting for the full lifecycle of both vehicle types. Regardless of grid mix, local air quality benefits from zero tailpipe emissions are significant, particularly in urban environments.

When does an EV make more financial sense?

EVs tend to offer better total value for drivers who cover high annual mileage, have access to cheap home charging, live in markets with strong purchase incentives, and plan to keep the vehicle for 5 or more years. Fleet operators and taxi drivers with very high mileage often see payback in under 3 years.