EV Charging Cost vs Gas Calculator

Enter one comparison distance and an annual distance using kilometres or miles.

Add real-world EV efficiency, home electricity price, and the share and price of public charging.

Add gasoline efficiency and a pump price using litres, US gallons, or Imperial gallons.

Open the charging and ownership assumptions to identify the EV efficiency boundary, apply charging loss correctly, and optionally enter purchase-price and maintenance differences.

A fair cost comparison requires the EV and gasoline vehicle to cover the same distance.

The calculator converts every supported efficiency format to electricity or fuel required for that common distance.

Results are shown for the entered trip, per 100 kilometres or miles, and annually when annual distance is entered.

Efficiency changes with speed, temperature, traffic, elevation, load, tyre pressure, heating, air conditioning, and driving style.

Use figures from comparable routes and conditions rather than combining an unusually efficient EV trip with an unusually inefficient gasoline result.

Charging records, vehicle history, fuel receipts, and reputable test data are generally stronger inputs than one exceptional journey.

An EV display can report energy used by the vehicle, while a charger or utility meter reports electricity purchased from the grid.

Choose vehicle-side when charging loss still needs to be added. Choose meter-side when the efficiency figure already includes purchased electricity.

This distinction prevents charging loss from being counted twice.

Public charging share means the percentage of total charging energy bought publicly, not necessarily the percentage of sessions.

The calculator applies an energy-weighted price: home rate multiplied by the home share plus public rate multiplied by the public share.

Convert predictable subscriptions, session fees, parking charges, or idle fees into an effective per-kWh rate only when that produces a realistic long-run price.

EV cost equals electricity purchased multiplied by the blended charging price.

Gasoline cost equals litres required multiplied by the pump price converted to a per-litre basis.

A positive energy-cost difference means the EV costs less; a negative value means the gasoline vehicle costs less.

Break-even electricity price is the blended rate at which the EV and gasoline vehicle have equal energy cost.

Below that electricity price, the EV costs less under the selected efficiency and fuel-price assumptions.

Break-even gasoline price works in the opposite direction: above that pump price, the EV costs less.

Enter EV purchase price minus gasoline-vehicle price. A positive number means the EV costs more upfront.

The calculator divides that difference by annual energy savings plus the entered annual EV maintenance savings.

This is a narrow simple-payback estimate, not total cost of ownership.

Compare home-heavy, mixed, and public-heavy charging cases.

Test warmer and colder efficiency, lower and higher fuel prices, and different annual distances.

A range of plausible outcomes is more useful than treating one optimistic result as certain.

The calculator focuses on energy spending and optional narrow ownership adjustments.

Vehicle choice can also depend on depreciation, financing, insurance, taxes, charging installation, incentives, reliability, tyres, repairs, resale value, and time.

Evaluate those factors separately with vehicle-specific quotations and realistic ownership periods.

The calculation, comparison, print output, and CSV export run locally in the browser.

No account, vehicle identification number, charger login, utility connection, or fuel-card connection is required.

The result is not a forecast, purchase recommendation, emissions analysis, or guaranteed ownership-cost outcome.