ME AMONG ALLAge around the world: understanding population comparisons
Median age and your age percentile
Median age divides a population into two equal-sized groups: younger and older. It is not the same as average age. One median cannot tell you the percentile for every possible age.
Choose who you are comparing with
A comparison with everyone includes children. A comparison with adults does not. Country, region, sex, and reference year can also change the comparison group. Read those labels before interpreting a result.
How a worldwide age comparison works
A global age distribution counts people, rather than giving every country equal importance. To estimate the share younger than you, sum the relevant age groups across the covered population and divide by its total. Grouped ages may require interpolation, which should be labelled.
What the source tells us
The United Nations World Population Prospects provides population estimates and projections. Estimates describe a reference period; projections describe possible future populations. Neither is a live count of everyone alive today.
Try an available age comparison
Explore Yourself contains the site’s available comparisons. Its coverage labels identify the population used. This article explains global age comparisons without substituting a country result for a world result.
Sources and scope
Editorial review: 17 October 2026. Source estimates may be revised. How to interpret our comparisons.