To calculate fuel cost: Fuel needed = Distance / Fuel Efficiency. Cost = Fuel needed x Price per litre. Example: 300km trip, car uses 8L/100km, fuel costs 340 rupees/litre. Fuel = 300/100 x 8 = 24 litres. Cost = 24 x 340 = 8,160 rupees. Our calculator handles all units and currencies!
📂 Daily Life
⛽ Fuel Cost Calculator
Calculate exact fuel cost for any trip. Enter distance, fuel efficiency, and fuel price to see total cost. Perfect for road trips, commute planning, and comparing cars.
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✨ Your Result
🦉Owl's Explanation
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Fill in the values above and click Calculate ✨
✅ Trusted Tool
The 365tool.net Fuel Cost Calculator handles all major fuel efficiency formats and units. Free for drivers, fleet managers, and road trip planners everywhere. No sign-up needed.
🤔 How Does This Work?
The Fuel Cost Calculator converts all inputs to a common unit then calculates:
Distance converted to km if miles entered
Efficiency converted to L/100km from any format
Fuel needed (litres) = Distance/100 x L/100km
Total cost = Fuel needed x Price per litre
Cost per person = Total / passengers
Cost per km shown for ongoing budgeting
❓ Frequently Asked Questions
What is fuel efficiency and how is it measured?▼
Fuel efficiency measures how far a vehicle travels per unit of fuel. L/100km: litres used per 100km (lower = better). km/L: kilometres per litre (higher = better). MPG: miles per gallon (UK/US, higher = better). 1 L/100km ≈ 100 km/L (reciprocal). Most cars use 5-15 L/100km.
What is the average fuel consumption for a car?▼
Small city cars: 5-7 L/100km. Medium sedans: 7-9 L/100km. SUVs: 10-14 L/100km. Large trucks: 15-25 L/100km. Hybrid cars: 3-5 L/100km. Electric cars: 0 (measured in kWh/100km instead). Sri Lanka fuel efficiency varies — older vehicles often consume 10-15 L/100km.
How can I improve fuel economy?▼
Maintain steady speed, avoid rapid acceleration. Inflate tyres to recommended pressure. Remove unnecessary weight. Use cruise control on highways. Service engine regularly (clean air filter, correct tyre pressure saves 3-4%). Drive at 90-100 km/h rather than 120 km/h (saves 15-20% fuel). Use air conditioning minimally.
Why does fuel consumption vary?▼
City driving vs highway: city driving uses 20-30% more fuel (idling, stop-start). Speed: fuel consumption increases exponentially above 100 km/h. Temperature: cold engines use more fuel. Air conditioning: adds 5-15% fuel use. Load: heavier car = more fuel. Wind resistance: roof boxes add 15-25%.
How do I calculate cost per kilometre?▼
Cost per km = (Price per litre x Fuel consumption L/100km) / 100. Example: 340 rupees/litre, 8L/100km. Cost = (340 x 8) / 100 = 2,720 / 100 = 27.2 rupees per km. For a 300km trip: 27.2 x 300 = 8,160 rupees total. Our calculator does this automatically!
Fuel efficiency measures how far a vehicle travels per unit of fuel. L/100km: litres used per 100km (lower = better). km/L: kilometres per litre (higher = better). MPG: miles per gallon (UK/US, higher = better). 1 L/100km ≈ 100 km/L (reciprocal). Most cars use 5-15 L/100km.
What is the average fuel consumption for a car?▼
Small city cars: 5-7 L/100km. Medium sedans: 7-9 L/100km. SUVs: 10-14 L/100km. Large trucks: 15-25 L/100km. Hybrid cars: 3-5 L/100km. Electric cars: 0 (measured in kWh/100km instead). Sri Lanka fuel efficiency varies — older vehicles often consume 10-15 L/100km.
How can I improve fuel economy?▼
Maintain steady speed, avoid rapid acceleration. Inflate tyres to recommended pressure. Remove unnecessary weight. Use cruise control on highways. Service engine regularly (clean air filter, correct tyre pressure saves 3-4%). Drive at 90-100 km/h rather than 120 km/h (saves 15-20% fuel). Use air conditioning minimally.
Why does fuel consumption vary?▼
City driving vs highway: city driving uses 20-30% more fuel (idling, stop-start). Speed: fuel consumption increases exponentially above 100 km/h. Temperature: cold engines use more fuel. Air conditioning: adds 5-15% fuel use. Load: heavier car = more fuel. Wind resistance: roof boxes add 15-25%.
How do I calculate cost per kilometre?▼
Cost per km = (Price per litre x Fuel consumption L/100km) / 100. Example: 340 rupees/litre, 8L/100km. Cost = (340 x 8) / 100 = 2,720 / 100 = 27.2 rupees per km. For a 300km trip: 27.2 x 300 = 8,160 rupees total. Our calculator does this automatically!