Fuel Consumption Converter

Convert between different fuel consumption units including mpg, L/100km, km/L, and gal/mi. Essential for automotive, transportation, and fuel efficiency calculations.

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Common Conversions
Quick access to frequently used conversions
Unit Information

Metric Units

International System of Units (SI) measurements

L/100km
metric
Liters per 100 Kilometers
Metric fuel consumption (lower values = better efficiency)
km/L
metric
Kilometers per Liter
Metric fuel efficiency (higher values = better efficiency)
L/km
metric
Liters per Kilometer
European fuel consumption (lower values = better efficiency)

Imperial Units

Traditional British and American measurements

mpg
imperial
Miles per Gallon
US fuel efficiency (higher values = better efficiency)
mpg (UK)
imperial
Miles per Gallon (UK)
UK fuel efficiency (higher values = better efficiency)
gal/mi
imperial
Gallons per Mile
US fuel consumption (lower values = better efficiency)
gal/100mi
imperial
Gallons per 100 Miles
US fuel consumption per 100 miles
km/gal
imperial
Kilometers per Gallon
Hybrid metric-imperial efficiency (higher values = better efficiency)
Preferences

Common Use Cases

  • Car Buyers: Compare fuel efficiency across different markets
  • Fleet Managers: Calculate fuel costs and efficiency
  • Travelers: Convert fuel efficiency for international trips
  • Environmentalists: Compare vehicle efficiency standards
  • Students: Learn about fuel efficiency and consumption

Fuel Efficiency Units

US Units

mpg (miles per gallon) - higher values = better efficiency

Metric Units

L/100km, km/L - lower L/100km = better efficiency

UK Units

mpg (UK) - different gallon size than US

Applications

Vehicle comparison, fuel cost calculation, efficiency analysis

About Fuel Consumption Conversion

Fuel consumption units measure how efficiently a vehicle uses fuel. The most common units are miles per gallon (mpg) in the US and liters per 100 kilometers (L/100km) in most other countries. Understanding these conversions is essential for comparing vehicles across different markets and calculating fuel costs.

Miles per gallon (mpg) measures distance traveled per unit of fuel consumed, where higher values indicate better efficiency. Liters per 100 kilometers (L/100km) measures fuel consumed per fixed distance, where lower values indicate better efficiency. Our converter handles all these relationships accurately.

This tool is essential for car buyers, fleet managers, travelers, and anyone working with vehicles from different markets. It provides precise conversions between fuel efficiency units, ensuring accurate comparisons and calculations for fuel costs, environmental impact, and vehicle performance across various regions and standards.

⚠️ Important Notes

Gallon Differences: US gallon (3.785 L) vs UK gallon (4.546 L) affect mpg values.
Driving Conditions: Real-world consumption may differ from official ratings.
Fuel Types: Different fuels have different energy densities.
Vehicle Factors: Age, maintenance, and driving style affect actual consumption.

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