Birth year · Generation Beta · 2025–2039
The final year of Generation Beta. A child born on 31 December 2039 is the last Beta; the cohort that follows has no agreed name yet, though the Greek sequence points to Generation Gamma.
A baby born in 2039 is Generation Beta, the cohort born 2025–2039. They will turn 18 in 2057 and 30 in 2069. Roughly 129.2 million babies were born worldwide that year according to the UN medium-variant projection.
2039 has not happened yet, so this page carries no events — only what follows arithmetically from a 2039 birth year. We do not invent history, forward or back.
Every date below is a straight calculation from the birth year and each country's own school system.
Age 4
Age 6
Age 7
Age 13
Age 18
Age 18
Age 21
Age 30
Age 50
The cohort this year belongs to
The cohort born between 2025 and 2039 — the first generation for whom artificial intelligence is not a product they adopted but the environment they were born into.
Cohort boundaries are hard lines drawn through a continuous thing. A child born a day before or after one of them lands in a different generation with an identical childhood.
They are Generation Beta. The cohort runs from 2025 to 2039 under the McCrindle boundaries used throughout this site.
Nobody born in 2039 exists yet — the year is still ahead. They would turn 18 in 2057.
About 129.2 million worldwide, projected by the UN medium variant.
Between 2043 and 2046, depending on the country. The United Kingdom and Ireland start at four, most countries at six, and Sweden, Poland and Indonesia at seven.
In 2057.
In most US states, class of 2057 if born January to August and class of 2058 if born September to December, because 1 September is the most common kindergarten cut-off. In England and Wales they take A-levels in the summer of 2057 (born January to August) or 2058 (born September to December).
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