Home/Tools/EV vs Petrol / Diesel
Ownership · Free EV tool

EV vs Petrol / Diesel Cost Calculator

Compare purchase outlay and running costs across three years, five years and your ownership period.

Your vehicle, your numbers

Example numbers are prefilled. Replace them with your vehicle data and local prices. Currency changes the label, not the exchange rate.

USD
Where do I find this?

Use your actual quote or budget and the period stated in the field label. Avoid entering a monthly amount into an annual field.

See the explanation →
USD
Where do I find this?

Use your actual quote or budget and the period stated in the field label. Avoid entering a monthly amount into an annual field.

See the explanation →
USD/kWh
Where do I find this?

Copy the per-kWh energy price from your bill or charging payment screen. Check whether tax is already included.

See the explanation →
kWh/100 km
Use battery-side driving consumption, not energy from your electricity bill.
Where do I find this?

Find recent driving consumption in the vehicle’s trip or energy display. Record the period and units. A charger receipt includes losses.

See the explanation →
%
Share of grid energy not stored in the battery. This is an editable scenario assumption.
Where do I find this?

Enter the assumed share of grid energy that does not reach the battery. It is a scenario unless supported by measurements.

See the explanation →
USD
Where do I find this?

Use your actual quote or budget and the period stated in the field label. Avoid entering a monthly amount into an annual field.

See the explanation →
USD
Where do I find this?

Use your actual quote or budget and the period stated in the field label. Avoid entering a monthly amount into an annual field.

See the explanation →
USD/L
Where do I find this?

Use your local fuel price per litre or the selected gallon standard.

See the explanation →
L/100 km
Where do I find this?

Use fuel consumption for comparable journeys. When entering MPG, select the correct gallon standard.

See the explanation →
Where do I find this?

Choose the description that matches this scenario. Review the explanation to see which settings affect arithmetic and which record context.

See the explanation →
USD
Where do I find this?

Use your actual quote or budget and the period stated in the field label. Avoid entering a monthly amount into an annual field.

See the explanation →
USD
Where do I find this?

Use your actual quote or budget and the period stated in the field label. Avoid entering a monthly amount into an annual field.

See the explanation →
km
Where do I find this?

Use your expected distance for a full year, not the car’s lifetime odometer.

See the explanation →
years
Where do I find this?

Choose the planned ownership period in years and keep it consistent for both vehicles.

See the explanation →

Your inputs stay in this browser. No sign-up.

Your results

Transparent by design

A clearer picture starts here.

Review the example inputs, then calculate. We show the assumptions alongside your result.

Why is this an estimate?

This is a purchase-plus-running-cost comparison. Resale, finance, taxes, parking, tyres and incentives are excluded; use True Cost of Ownership for a broader budget.

Read our methodology

EVVerity estimates are informational and are not a substitute for a professional battery diagnostic or pre-purchase vehicle inspection.

AdvertisementReserved space · tools remain free

See how the calculation works

Cost = purchase price + years × (energy / fuel + service + insurance). Break-even = purchase-price difference ÷ annual running-cost savings, where meaningful.

This is a purchase-plus-running-cost comparison. Resale, finance, taxes, parking, tyres and incentives are excluded; use True Cost of Ownership for a broader budget.

Compare equal distances and an explicit cost boundary

Use the same annual distance and ownership duration for both vehicles. The comparison includes purchase price, energy, service and insurance. It does not silently assume matching resale values, tax, tyres or finance costs; those exclusions can change a real-world conclusion.

Where to get useful inputs

  • Enter local electricity and fuel prices from comparable dates.
  • When using MPG, select US or Imperial gallons; the standards differ.
  • Use consumption suitable for the same journeys and explore different future prices.
What does a break-even point mean?

It is the point where the modelled running-cost difference offsets the purchase-price difference, if the inputs produce such a point. It is conditional on those assumptions and does not tell you which car to buy.

Methodology, assumptions & confidence →
AdvertisementReserved space · tools remain free

Keep the picture in focus

All tools →
Battery Health Estimator →Charging Cost →True Cost of Ownership →

Read the relevant evidence