Fuel Economy Calculator
The BuildLockr fuel economy calculator helps you instantly convert vehicle efficiency metrics. Use this tool to calculate your car's fuel economy between MPG, L/100km, and km/L. Whether you are comparing European vehicle specs or estimating trip costs, this fuel conversion tool provides immediate accuracy. This helps drivers understand their vehicle's efficiency and estimate fuel expenses easily.
Fuel Economy Conversion
L/100km = 235.2 ÷ mpg
mpg = 235.2 ÷ L/100km
km/L = 100 ÷ L/100km
km/L = mpg × 0.425144
Where: mpg = miles per gallon (US) L/100km = liters per 100 kilometers km/L = kilometers per liter
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How Does MPG Affect Fuel Costs?
Fuel Economy Examples:
- • Compact Hybrid: 50+ mpg (4.7 L/100km)
- • Compact Car: 30-35 mpg (6.7-7.8 L/100km)
- • Midsize Sedan: 25-30 mpg (7.8-9.4 L/100km)
- • SUV/Crossover: 20-28 mpg (8.4-11.8 L/100km)
- • Pickup Truck: 15-25 mpg (9.4-15.7 L/100km)
- • Sports Car: 15-25 mpg (9.4-15.7 L/100km)
- • Electric Vehicle: 100+ MPGe equivalent
What is Fuel Economy?
Fuel economy is a measure of how efficiently a vehicle uses fuel. Different regions use different metrics to express this efficiency, with the US typically using miles per gallon (mpg), Europe using liters per 100 kilometers (L/100km), and some Asian countries using kilometers per liter (km/L).
Benefits:
- • Calculate fuel costs for any journey
- • Compare vehicle efficiency across different markets
- • Plan fuel stops for long-distance travel
- • Evaluate environmental impact of vehicle choices
- • Track fuel efficiency improvements over time
Important Considerations:
- • Higher mpg and km/L values indicate better fuel efficiency
- • Lower L/100km values indicate better fuel efficiency
- • Actual fuel economy varies based on driving conditions and habits
- • EPA ratings (US) and WLTP ratings (Europe) use different testing methods
- • City vs highway driving can show significant differences
Common Fuel Economy Conversion Questions
What is a good fuel economy for a car?
A modern compact car typically gets 30-35 mpg (6.7-7.8 L/100km), while hybrid vehicles can often exceed 50 mpg.
How do you convert L/100km to MPG?
You can convert L/100km to US MPG by dividing 235.2 by the L/100km value. Use our free tool to do this calculation instantly.