EV vs Fuel Energy Cost
Compare per-distance energy costs and purchase-price payback.
Your numbers
Fuel cost per 100 km
Enter electricity drawn from the supply, including charging losses. Excludes maintenance, insurance, taxes, depreciation and incentives.
Scenario comparison
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Formula
Use S = (fp−eq)D/100. f is fuel litres and e is EV wall energy in kWh per 100 km; p is fuel price per litre, q is electricity price per kWh, and D is annual distance in km. S is annual energy-cost saving.
Compare per-distance energy costs and purchase-price payback.
Worked example
- Fuel consumption (L/100 km)
- 7
- Fuel price per litre
- 1.5
- Charging electricity from supply (kWh/100 km)
- 18
- Electricity price per kWh
- 0.25
- Annual distance (km)
- 10000
- Extra EV purchase cost
- 6000
- Fuel cost per 100 km
- 10.5
- EV cost per 100 km
- 4.5
- Annual energy saving
- 600
- Energy-only payback
- 10 years
Scope and limitations
Enter electricity drawn from the supply, including charging losses. Excludes maintenance, insurance, taxes, depreciation and incentives.
Inputs are checked for missing values and allowed ranges. A result outside the finite numeric range is not displayed. Rounding affects display, while the calculation uses the model’s numeric precision.
Check your units and assumptions before relying on a result. Changing a label does not convert a currency or physical unit.
Formula version: 888d69630b12 · Example checked: