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Automotive Calculators

EV vs Petrol Cost Calculator

Verified formula Updated Jun 2026 Private — runs on your device

Enter details
km
kWh/100km
₹/kWh
km/l
₹/l
Verified formula Private

Annual saving with EV

₹80,800

EV running cost
₹19,200
Petrol running cost
₹1,00,000

For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.

How to use the EV vs Petrol Cost Calculator

The EV vs Petrol Cost Calculator works out your annual saving with ev, along with 2 related figures in an instant. Enter annual distance, ev consumption and electricity rate and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.

  1. Enter the annual distance.
  2. Enter the ev consumption.
  3. Enter the electricity rate.
  4. Enter the petrol car efficiency.
  5. Enter the petrol price.
  6. Read off your annual saving with ev, together with ev running cost and petrol running cost — the calculator updates automatically, with no button to press.

Formula

The EV vs Petrol Cost Calculator uses the formula:

Annual saving with EV = Annual distance ÷ Petrol car efficiency × Petrol price - Annual distance ÷ 100 × EV consumption × Electricity rate

Worked example

For example, with annual distance of 15,000 km, ev consumption of 16 kWh/100km, electricity rate of ₹/kWh8 and petrol car efficiency of 15 km/l and the other inputs, the annual saving with ev is ₹80,800.

Inputs used
Annual distance 15,000 km
EV consumption 16 kWh/100km
Electricity rate ₹/kWh8
Petrol car efficiency 15 km/l
Petrol price ₹/l100
Results
Annual saving with EV ₹80,800
EV running cost ₹19,200
Petrol running cost ₹1,00,000

Results are estimates for educational use, not professional advice.

Frequently asked questions

Compare energy costs over the same distance. Driving 15,000 km, an EV may cost 19,200 against 1,00,000 for petrol — a saving of about 80,800 a year.

No. It compares running (fuel) costs only. EVs often cost more upfront but less to run.

Maintenance is usually lower for EVs, but factor in battery life, charging access and any incentives or taxes.

Electricity per kilometre is usually cheaper than petrol, and electric motors are more efficient than combustion engines.

The EV vs Petrol Cost Calculator uses the formula: Annual saving with EV = Annual distance ÷ Petrol car efficiency × Petrol price - Annual distance ÷ 100 × EV consumption × Electricity rate. For example, with annual distance of 15,000 km, ev consumption of 16 kWh/100km, electricity rate of ₹/kWh8 and petrol car efficiency of 15 km/l and the other inputs, the annual saving with ev is ₹80,800.

Enter the annual distance. Enter the ev consumption. Enter the electricity rate. Enter the petrol car efficiency. Enter the petrol price. Read off your annual saving with ev, together with ev running cost and petrol running cost — the calculator updates automatically, with no button to press.

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