Fuel Cost Calculator: Save Smarter, Drive Better
The Fuel Cost Calculator helps you estimate the exact amount of fuel you’ll need for any trip and how much it will cost based on your vehicle’s mileage, travel distance, and current fuel price. Whether you’re planning a road trip, daily commute, or managing a fleet of vehicles, understanding fuel cost can save you money and improve budgeting accuracy.
How Fuel Cost Is Calculated
The formula used by this calculator is simple yet powerful:
Fuel Cost = (Distance ÷ Fuel Efficiency) × Fuel Price × Number of Trips
For example, if you travel 100 km with a car that gives 15 km/l and petrol costs 100 per litre, your fuel cost will be approximately 666.67 for a one-way trip.
Why You Should Calculate Fuel Cost Before Traveling
- Plan road trips with accurate budgeting.
- Compare car vs. bike or electric scooter costs.
- Estimate monthly commute expenses.
- Monitor rising fuel prices and optimize routes.
Average Fuel Efficiency in India
- Petrol Cars: 12–18 km/l
- Diesel Cars: 18–25 km/l
- Bikes: 40–70 km/l
- Electric Vehicles: ₹1–2 per km equivalent
Tips to Improve Fuel Efficiency
- Maintain proper tyre pressure.
- Avoid sudden acceleration and braking.
- Service your vehicle regularly.
- Reduce idling and carry minimal weight.
- Use AC efficiently on highways.
Fuel Prices in India and Around the World
Fuel prices in India vary by state due to taxes. As of 2025, the average petrol price is around ₹100–₹110/litre, while diesel ranges from ₹90–₹100/litre. Global oil prices and exchange rates influence these variations. Keeping track of local fuel rates helps drivers manage costs better.
Electric Vehicles vs. Fuel Vehicles
With the rise of electric mobility, comparing traditional fuel costs with EV charging costs is essential. On average, an EV consumes ₹1–₹2 worth of electricity per km, much lower than petrol or diesel vehicles, which cost ₹6–₹8 per km. However, initial EV costs and charging infrastructure must be considered.
Use Cases
- Fleet management and route optimization.
- Road trip budgeting for tourists and families.
- Company reimbursement and travel allowance tracking.
- Personal cost comparison for petrol vs. diesel vs. EV.
Environmental Impact of Fuel Consumption
Each litre of petrol emits around 2.31 kg of CO₂, while diesel produces 2.68 kg. Reducing unnecessary trips, switching to electric vehicles, or carpooling can help reduce your carbon footprint. This calculator encourages awareness of both financial and environmental costs of driving.
Frequently Asked Questions
Q1: How accurate is this calculator?
It provides a close estimate based on the data you enter. Real-world mileage may vary due to terrain, driving style, and traffic.
Q2: Can I use it for electric vehicles?
Yes! You can enter cost per unit of electricity (₹/kWh) as “fuel price” and use your EV’s efficiency (km per kWh) to estimate costs.
Q3: Does it support miles and gallons?
Currently, it uses the metric system (km/litre), but you can convert using 1 mile = 1.609 km and 1 gallon = 3.785 litres.
Conclusion
The Fuel Cost Calculator is a simple yet essential tool for every driver. It helps you stay informed about your vehicle’s efficiency, forecast expenses, and plan trips smartly. As fuel prices fluctuate, knowing your cost per trip gives you control, confidence, and clarity over your driving budget.