Fuel Cost vs EV Charging Cost: How to Calculate Travel Cost per Mile and Kilometer

A financial comparison between internal combustion engines and electric vehicles, detailing fuel economy math and cost-per-kilometer modeling.

By AnyCalcHub Automotive & Mobility Desk

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1. Fuel Expense & EV Energy Cost Equations

Gasoline cost is driven by miles per gallon (or liters per 100 km) and pump prices. Electric vehicle cost is driven by battery efficiency (kWh/100 miles) and household electricity rates.

Mathematical Formula

Trip Gas Cost = (Distance / Mileage) × Fuel Price
EV Cost per Mile = (kWh per 100 miles / 100) × Electricity Cost per kWh

Step-by-Step Worked Example

Trip Distance500 km

Vehicle Mileage15 km/liter

Fuel Price₹100/liter

Step 1:Liters needed: 500 ÷ 15 = 33.33 liters

Step 2:Total fuel cost: 33.33 × 100 = ₹3,333.33

Final Result: Total Trip Fuel Cost: ₹3,333

Frequently Asked Questions

Common questions and mathematical nuances for this calculation.

How much cheaper is driving an EV compared to a petrol car per mile?

On average, charging an electric vehicle at home overnight costs approximately 60% to 75% less per mile than purchasing equivalent gasoline, depending on local utility electricity tariffs.

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