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EV vs Petrol Running Cost Calculator
Live math canvas
Your numbers, formula and explanation together
EV vs Petrol Running Cost Calculator: $1,794.00/year. Petrol $2,550.00/year; EV $756.00/year; EV premium payback 2.8 years.
Formula applied
The exact method behind this answer
CalculationTime keeps the method visible so the number can be checked instead of blindly trusted.
Petrol annual cost = annual km / 100 x L/100km x fuel price. EV annual cost = annual km / 100 x kWh/100km x electricity price. Saving = petrol cost - EV cost. Payback = EV premium / annual saving.
Apply the formulaPetrol annual cost = annual km / 100 x L/100km x fuel price. EV annual cost = annual km / 100 x kWh/100km x electricity price. Saving = petrol cost - EV cost. Payback = EV premium / annual saving.$1,794.00/yearPetrol $2,550.00/year; EV $756.00/year; EV premium payback 2.8 years.
Your live breakdown
Current inputs in the calculation
These values come from the controls above and update when the calculator changes.
Annual distance
15,000 km
Petrol use
8.5 L/100km
Fuel price
2 $/L
EV energy use
18 kWh/100km
Electricity price
0.28 $/kWh
EV premium over petrol equivalent
5,000 $
Resulting answer
$1,794.00/year
Petrol $2,550.00/year; EV $756.00/year; EV premium payback 2.8 years.
Answer
$1,794.00/year
Live support
Petrol $2,550.00/year; EV $756.00/year; EV premium payback 2.8 years.
Assumptions used
What this answer assumes
The visible assumptions define the boundary of this calculation.
This calculator is for planning and education, not legal, tax, medical, immigration, engineering or financial advice.
Use current official rates, contracts, carrier terms, statutes or professional guidance before relying on the result.
The default values are examples. Replace them with the figures from the job, invoice, contract, bill, service or record being checked.
Master’s Tip
How to use the result well
Professional note: print the input values, formula, result and date together so the calculation can be reviewed later.
Printable record
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Save the inputs, result, formula, assumptions, page URL and date together so the calculation can be reviewed later.
Annual distance
15,000 km
Petrol use
8.5 L/100km
Fuel price
2 $/L
EV energy use
18 kWh/100km
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Formula
Petrol annual cost = annual km / 100 x L/100km x fuel price. EV annual cost = annual km / 100 x kWh/100km x electricity price. Saving = petrol cost - EV cost. Payback = EV premium / annual saving.
Worked example
At 15,000 km, 8.5 L/100km and $2/L, petrol costs $2,550/year. At 18 kWh/100km and $0.28/kWh, EV electricity costs $756/year.
Professional note
Professional note: print the input values, formula, result and date together so the calculation can be reviewed later.
Regional and unit assumptions
Basis: transparent planning arithmetic using the visible inputs and assumptions on this page.
Assumptions and limitations
This calculator is for planning and education, not legal, tax, medical, immigration, engineering or financial advice.
Use current official rates, contracts, carrier terms, statutes or professional guidance before relying on the result.
The default values are examples. Replace them with the figures from the job, invoice, contract, bill, service or record being checked.
Methodology & Accuracy
How this calculator is checked
CalculationTime pages are built around visible arithmetic: the formula, assumptions, worked example and practical limitations are shown so the result can be checked rather than simply trusted.
Formula used
Petrol annual cost = annual km / 100 x L/100km x fuel price. EV annual cost = annual km / 100 x kWh/100km x electricity price. Saving = petrol cost - EV cost. Payback = EV premium / annual saving.
Standard or basis
Basis: transparent planning arithmetic using the visible inputs and assumptions on this page.
Where a calculator follows a named legal, trade or industry standard, that standard is cited visibly. Otherwise the page uses transparent general arithmetic and states its limits.
Master's Tip
Professional note: print the input values, formula, result and date together so the calculation can be reviewed later.
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