Global AveragesGlobal Averages

    Global Average Fuel Efficiency

    Last updated: March 11, 2026

    7.2 L/100km

    L/100km

    The global average fuel efficiency of new cars is approximately 7.2 liters per 100 km (32.7 mpg). Japan leads at 4.9 L/100km, while the US averages 8.1 L/100km. Fuel efficiency has improved 25% since 2005.

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    Historical Trend

    Source: IEA

    Why This Average Exists

    Vehicle fuel efficiency directly impacts oil consumption, CO₂ emissions, and consumer fuel costs. Improving efficiency is one of the fastest ways to reduce transport emissions.

    Factors That Affect Global Average Fuel Efficiency

    • Government fuel standards
    • Vehicle size preferences
    • Engine technology
    • EV market share
    • Fuel prices
    • Consumer demand

    Frequently Asked Questions

    Methodology & Data Sources

    The data presented on this page is compiled from publicly available datasets published by international organizations including the World Bank, World Health Organization (WHO), International Labour Organization (ILO), United Nations, NASA, and national statistical agencies.

    Global averages are calculated using population-weighted or arithmetic means depending on the metric. Country-level data reflects the most recent available figures, typically from 2024–2024. Where gaps exist, the latest available data point is used.

    All figures are subject to revision as source organizations update their datasets. For the most authoritative data, we encourage consulting the original sources linked in the table above.

    Further Reading