EV vs petrol cost calculator

What driving the same distance costs in an EV and in a petrol car, and the CO2 difference.

You drive (km a year)

Over (years)

Start from a car (optional)

Fills in what you leave blank, using figures published by the maker or EPA. Anything you type wins.

EV consumption (kWh/100 km)

Blank uses the chosen car's published figure.

Charging efficiency (%)

Optional. Blank uses 90 %, typical of home AC charging.

Electricity price per kWh (BDT)

What you pay at home, or your average with public charging.

Petrol car consumption (km/l)

Petrol price (BDT per litre)

Country, units and currency (Bangladesh)

Country

Sets the usual units and currency, and the grid's CO2 where it applies. Press the button after changing it.

Distance

EV efficiency

Petrol car consumption

Petrol price is quoted

Currency

Your answer appears here Fill in what you know and press the button. Every assumption is shown next to the result.

How it works

EV energy = distance × consumption ÷ charging efficiency. EV cost = that × your price per kWh.
Petrol = distance × litres per 100 km ÷ 100, × your price per litre.
Prices stay the same every year (no inflation) and totals are the yearly figure × years.
CO2: petrol burns 8,887 g per US gallon (EPA). The EV's CO2 is its energy × your country's average grid intensity from Ember. It ignores imports, the time of day and any solar on your roof, so treat it as a ballpark.

This compares running costs only. It leaves out the purchase price, tax and incentives, insurance, servicing and depreciation. Use your own prices for a useful answer.

Keep your numbers in EVFolk

The app does these sums for you from your real charges: what you spent, what you saved against petrol and the CO2 you avoided. Use it on the web today, or on your phone.

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