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How to Calculate Electric Car

What is Electric Car?

An electric car cost calculator compares the total running costs of an EV versus a petrol or diesel car over time, factoring in fuel/electricity costs, road tax, servicing, and potentially depreciation.

Formula

Range (km) = Battery capacity (kWh) / Efficiency (kWh/km) | Average EV: 15–20 kWh/100km

Step-by-Step Guide

  1. 1EV fuel cost = Distance / Efficiency (mi/kWh or km/kWh) × Electricity rate
  2. 2Petrol cost = Distance / MPG × Fuel price per gallon/litre
  3. 3EV typically costs ~3–4× less per mile in energy
  4. 4EV servicing typically 30–40% cheaper (no oil changes, fewer brake changes)

Worked Examples

Input
EV: 4 mi/kWh, $0.15/kWh, 12,000 mi/yr vs Petrol: 30 MPG, $3.50/gal
Result
EV fuel: $450/yr; Petrol fuel: $1,400/yr — EV saves $950/yr

Frequently Asked Questions

What is Electric Car Cost?

An electric car cost calculator compares the total running costs of an EV versus a petrol or diesel car over time, factoring in fuel/electricity costs, road tax, servicing, and potentially depreciation. Use this calculator for accurate, instant results.

How accurate is the Electric Car Cost calculator?

The calculator uses the standard published formula for electric car cost. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

What units does the Electric Car Cost calculator use?

This calculator works with inches, kilometres, percentages, kilowatts. You can enter values in the units shown — the calculator handles all conversions internally.

What formula does the Electric Car Cost calculator use?

The core formula is: EV fuel cost = Distance / Efficiency (mi/kWh or km/kWh) × Electricity rate. Each step in the calculation is shown so you can verify the result manually.

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