Skip to content
ENExplore Calculators

Gas vs EV Cost

Free Gas vs EV Cost calculator with clear step-by-step results.

About Gas vs EV Cost

Compares the running cost of the same annual distance on petrol against electricity, then adds the maintenance difference - no oil changes, no filters, far less brake wear. The per-kilometre gap is the durable number, because it stays valid as annual distance changes.

Formulas

Petrol cost

Cost = km x (L/100km) / 100 x price per litre

EV cost

Cost = km x (kWh/100km) / 100 x price per kWh

Worked example

With the default values below, Gas vs EV Cost returns Annual saving with the EV of $1,727.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Annual distance drivenminimum 0 km
15,000 km
Petrol consumptionminimum 0.1 L/100km
7.8 L/100km
Petrol priceminimum 0 $/L
1.7 $/L
EV consumptionminimum 1 kWh/100km
17 kWh/100km
Electricity priceminimum 0 $/kWh
0.24 $/kWh
Annual maintenance saving on the EVminimum 0 $
350 $

Results

Annual saving with the EV
$1,727.00
Annual petrol cost
$1,989.00
Annual electricity cost
$612.00
Energy cost difference per kilometre
$0.0918

Step by step

  1. 1Values used
  2. 2Petrol cost
  3. 3EV cost
  4. 4Annual saving with the EV= $1,727.00
  5. 5Annual petrol cost= $1,989.00
  6. 6Annual electricity cost= $612.00
  7. 7Energy cost difference per kilometre= $0.0918/km

Assumptions and limits

  • The result is derived only from the 6 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax or fees or charges into account.
  • Figures are rounded for display to 4 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Does home charging price hold up?

Only if you charge at home. Public rapid charging often costs two to four times a domestic tariff, which can erase most of the saving for drivers without off-street parking.

What about purchase price and depreciation?

Not included - this is running cost only. Compare the annual saving against the price premium to see how many years the premium takes to recover.

Related Calculators

Gas vs EV Cost – Calculate Annual saving with the EV