Fuel & Efficiency

Fuel Economy

Q: How does MPG affect fuel costs?

A higher MPG means the vehicle consumes less fuel to travel the same distance, which directly lowers your total fuel costs over time.

Convert MPG, L/100km, and km/L economy figures.

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

Miles per Gallon (mpg US):

Liters per 100 Kilometers (L/100km):

Kilometers per Liter (km/L):

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About this tool

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.

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

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.