Life expectancy is a widely used demographic and health indicator for comparing longevity across countries and territories. It estimates how many years a person is expected to live under the mortality conditions represented by the data. The 2026 life expectancy by country ranking compares overall longevity while also providing separate female and male life expectancy estimates. Differences between countries can reflect variations in mortality patterns, healthcare, living conditions, demographics, income, public health and other socioeconomic factors.