Your car's mileage affects every petrol station visit and every road trip budget. Our fuel consumption calculator gives you the precise km/l (or L/100km) efficiency of your vehicle — helping you compare real-world performance against manufacturer claims and track changes over time.
What is Fuel Consumption?
Fuel consumption is the amount of fuel a vehicle uses over a given distance, typically expressed as litres per 100 km (L/100km) or kilometres per litre (km/l). Knowing your actual fuel consumption helps you budget travel costs accurately, identify when your vehicle needs servicing (drop in mileage = warning sign), and compare vehicles before buying.
Formula
Fuel Efficiency (km/l) = Distance (km) / Fuel Used (litres)
Fuel Consumption (L/100km) = (Fuel Used / Distance) × 100
Example Calculation
- Distance: 450 km. Fuel used: 30 litres.
- Efficiency = 450/30 = 15 km/l
- L/100km = (30/450) × 100 = 6.67 L/100km
How to Use This Calculator
- Enter the Distance Travelled in km.
- Enter the Fuel Used in litres (fill up fully, drive, then fill again — note the litres refuelled).
- Click Calculate to see your km/l and L/100km.
Real Life Use Cases
- Vehicle Health Check: A drop in mileage below your baseline suggests air filter, tyre pressure, or engine issues.
- Highway vs City Comparison: Measure mileage on different routes to plan fuel stops.
- EV vs Petrol: Convert km/l to cost/km and compare against an EV's electricity cost per km.
- Fleet Management: Track fuel efficiency across multiple vehicles monthly.
FAQs
What is a good fuel efficiency for an Indian car?
Economy hatchbacks: 18-25 km/l. Mid-range sedans: 15-20 km/l. SUVs: 12-17 km/l. Bikes and scooters: 40-60 km/l.
How can I improve my vehicle's fuel efficiency?
Maintain optimal tyre pressure, drive at 60-80 km/h on highways, avoid aggressive acceleration/braking, service the engine regularly, and reduce AC use in city traffic.
Common Use Cases for Fuel Consumption Calculator
- Use this Fuel Consumption Calculator for quick, accurate online calculations — no app needed
- Ideal for students, professionals, and anyone planning finances or health goals
- Get instant results right in your browser — 100% private, no data stored
- Bookmark this page to use the Fuel Consumption Calculator anytime, on any device