📖 How to Use This Fuel Cost Calculator
1
Enter trip distance - Input the total distance of your journey in kilometers or miles.
2
Enter your vehicle's fuel efficiency - Use L/100km (liters per 100km) or MPG (miles per gallon).
3
Enter fuel price and currency - Current fuel price per liter or gallon in your local currency.
4
Enter number of passengers - To split the fuel cost among travelers.
5
Click "Calculate Trip Cost" - Get total fuel cost, fuel needed, cost per person, and cost per unit distance.
⛽ Understanding Fuel Efficiency Units
- L/100km: Common in Europe, Asia, and Australia. Lower numbers mean better efficiency.
- MPG: Common in USA and UK. Higher numbers mean better efficiency.
📊 Fuel Consumption Formula
For L/100km:
Fuel Needed (L) = (Fuel Efficiency × Distance in km) ÷ 100
Total Cost = Fuel Needed × Fuel Price per Liter
For MPG:
Fuel Needed (gal) = Distance in miles ÷ Fuel Efficiency
Total Cost = Fuel Needed × Fuel Price per Gallon
💡 Tips to Reduce Fuel Costs
- Maintain proper tire pressure: Under-inflated tires increase consumption by up to 3%
- Drive smoothly: Avoid rapid acceleration and hard braking
- Reduce speed: Fuel efficiency drops sharply above 65 mph (105 km/h)
- Remove excess weight: Extra 100 lbs reduces MPG by about 1%
- Use cruise control: Maintains steady speed on highways
- Combine trips: Plan errands to avoid multiple cold starts
❓ Frequently Asked Questions
How do I convert between L/100km and MPG?
To convert MPG to L/100km: 235.214 ÷ MPG. To convert L/100km to MPG: 235.214 ÷ L/100km.
What is a good fuel efficiency for a car?
Small cars: 6-8 L/100km (30-40 MPG); SUVs: 9-12 L/100km (20-26 MPG); Trucks: 11-15 L/100km (15-21 MPG); Hybrids: 4-5 L/100km (50-60 MPG).
Does driving faster use more fuel?
Yes! Driving at 120 km/h (75 mph) can use 20-30% more fuel than at 90 km/h (55 mph).
How does air conditioning affect fuel consumption?
AC can increase fuel consumption by 5-20%. At highway speeds, AC is more efficient than open windows.