Global AveragesGlobal Averages

    Global Average Birth Weight

    Last updated: March 2, 2026

    3.2 kg

    kg

    The global average birth weight is approximately 3.2 kg (7.1 lbs). Iceland has the highest average at 3.6 kg, while South Asian countries average 2.8 kg. About 15% of babies worldwide are born with low birth weight (<2.5 kg).

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    Why This Average Exists

    Birth weight is one of the most important indicators of newborn health and is strongly correlated with infant survival, childhood development, and adult health outcomes.

    Factors That Affect Global Average Birth Weight

    • Maternal nutrition
    • Prenatal care
    • Maternal age
    • Socioeconomic status
    • Genetics
    • Smoking during pregnancy

    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 2023–2024. 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