⛽
Fuel Efficiency Calculator
Calculate vehicle fuel efficiency and convert between km/L, L/100km, and MPG units. Also calculate fuel needed and cost for your trip.
Average Fuel Efficiency by Vehicle Type
| Vehicle Type | km/L | L/100km | MPG (US) |
|---|---|---|---|
| Compact | 14-18 | 5.5-7.1 | 33-42 |
| Sedan | 12-15 | 6.7-8.3 | 28-35 |
| SUV | 9-13 | 7.7-11.1 | 21-31 |
| Hybrid | 18-25 | 4.0-5.5 | 42-59 |
📖 How to Use
- Calculate: Enter distance traveled (km) and fuel used (L)
- Convert: Enter a value and select its unit
- Cost: Enter target distance, fuel efficiency, and fuel price
- Click Calculate to see the results
✨ Features
- ✓Supports km/L, L/100km, MPG(US), MPG(UK) units
- ✓Real-time efficiency calculation
- ✓Convert between all units
- ✓Calculate fuel needed for a trip
- ✓Estimate fuel costs
- ✓Reference table by vehicle type
📐 Formula
Fuel Efficiency (km/L) = Distance (km) ÷ Fuel Used (L)💡 How It Works
- •Fuel efficiency measures how far a vehicle can travel on a unit of fuel.
- •km/L: Used in Korea, Japan, etc. Shows kilometers traveled per liter.
- •L/100km: Used in Europe. Shows liters needed to travel 100km.
- •MPG(US): Based on US gallon (3.785L). Shows miles per gallon.
- •MPG(UK): Based on UK gallon (4.546L). About 20% higher than US MPG.
- •Fuel efficiency varies based on driving habits, road conditions, vehicle condition, and A/C usage.
❓ FAQ
Q. How do I convert km/L to L/100km?
A. L/100km = 100 ÷ km/L. Example: 12 km/L = 100÷12 = 8.33 L/100km
Q. Why are US MPG and UK MPG different?
A. US gallon is 3.785L, UK gallon is 4.546L. The same vehicle shows about 20% higher UK MPG.
Q. What is considered good fuel efficiency?
A. Generally, 12 km/L (28 MPG US) or higher is good, 15 km/L (35 MPG US) or higher is excellent. Hybrids typically achieve 18-25 km/L.
Q. How can I improve fuel efficiency?
A. Avoid rapid acceleration/braking, maintain steady speed (50-65 mph), check tire pressure, remove unnecessary weight, and use A/C moderately.
Q. Why is my actual fuel efficiency lower than the EPA rating?
A. EPA ratings are tested under standard conditions. Real-world driving with traffic, driving habits, and weather can result in 10-20% lower efficiency.