Savings & Comparisons
EV vs Petrol Cost Calculator
Compare operational expenditure between electric and internal combustion vehicles.
Primary Metric: Net Savings with EV
Savings & Comparisons Deterministic Model v1.2
EV Savings Calculator
Calculate cumulative 1-year, 3-year, and 5-year operational savings over petrol.
Savings Model Inputs
Forecast cumulative 1, 3, and 5-year savings Projected Annual Savings ₹150,971.43 ₹11,580.95 net fuel savings per month
1-Year Savings ₹1.51 Lakh
3-Year Savings ₹4.53 Lakh
5-Year Savings ₹7.55 Lakh
Monthly Petrol Cost: ₹13,866.67
Monthly EV Electricity: ₹2,285.71
Annual Maintenance Bonus: +₹12,000.00
Mathematical Formula & Physical Model
Multiplies monthly fuel savings over multi-year horizons and incorporates reduced electric vehicle mechanical maintenance expenses.
1
Monthly Fuel Savings = Monthly Petrol Expenditure - Monthly EV Electricity Cost 2
Annual Savings = (Monthly Fuel Savings × 12) + Annual Maintenance Differential 3
Multi-Year Savings = Annual Savings × Number of Years Worked Example
Reference BenchmarkHigh-Mileage Fleet Commuter
Driving 2,000 km monthly, replacing a 15 km/L petrol car with an electric vehicle delivering 7.0 km/kWh, with ₹12,000 annual maintenance savings.
Monthly Distance 2,000 km
Petrol Price ₹104.00 / L
Petrol Mileage 15.0 km/L
EV Efficiency 7.0 km/kWh
EV Rate ₹8.00 / kWh
Annual Maintenance Saving ₹12,000
Frequently Asked Questions
Why do EVs require less annual maintenance?
Electric vehicles have no engine oil, spark plugs, timing belts, exhaust systems, or multi-speed transmissions. Regenerative braking also significantly extends brake pad lifespan.
How do battery warranty terms protect savings?
Most manufacturers provide 8-year or 160,000 km battery warranties guaranteeing at least 70% state of health, safeguarding operational savings during the primary ownership cycle.