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Calculators / Automotive / EV versus petrol running cost
EV versus petrol running cost calculator
Compare annual energy costs for an EV and a petrol car.
On this page
Annual EV energy cost800
Annual petrol cost2,400
Annual energy saving with EV1,600
Calculator controls
How to calculate
Compare annual energy costs for an EV and a petrol car.
Annual EV energy cost = distance*electric/100*tariff; Annual petrol cost = distance*petrol/100*fuel; Annual energy saving with EV = distance/100*(petrol*fuel-electric*tariff)
Worked example
Annual distance (km): 20000; EV consumption at charger (kWh/100 km): 20; Electricity price per kWh: 0.2; Petrol consumption (L/100 km): 8; Petrol price per litre: 1.5.
Annual EV energy cost: 800 ; Annual petrol cost: 2,400 ; Annual energy saving with EV: 1,600 .
Assumptions and limits
Yes. Use charger-side energy consumption here, or adjust battery-side consumption to include charging losses. Vehicle price and other ownership costs are separate.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
The comparison covers energy only at the entered consumption and tariffs. A negative saving means the EV energy cost is higher.
When this tool is useful
Compare annual energy costs for an EV and a petrol car.
Understanding your inputs
| Input | What to enter |
|---|---|
| Annual distance (km) | Enter a number of at least 0 and no more than 1000000000000. |
| EV consumption at charger (kWh/100 km) | Enter a number of at least 0 and no more than 1000000000000. |
| Electricity price per kWh | Enter a number of at least 0 and no more than 1000000000000. |
| Petrol consumption (L/100 km) | Enter a number of at least 0 and no more than 1000000000000. |
| Petrol price per litre | Enter a number of at least 0 and no more than 1000000000000. |
Frequently asked questions
Should charging losses be included?
Yes. Use charger-side energy consumption here, or adjust battery-side consumption to include charging losses. Vehicle price and other ownership costs are separate.