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Birth year · Generation Beta · 2025–2039

Born in 2025?
Generation Beta.

The first year of Generation Beta. Every baby born from 1 January 2025 belongs to a cohort that will not close until the end of 2039.

The short answer

A baby born in 2025 is Generation Beta, the cohort born 2025–2039. They turn 1 in 2026, and will be 18 in 2043. Roughly 132 million babies were born worldwide that year.

Generation
Generation Beta
Cohort 2025–2039
Age in 2026
1
Turning 2 next birthday
Turns 18 in
2043
Voting age in most countries
Age in 2050
25
Alphas are 26–40, Betas 11–25
Babies born worldwide
132 million
UN World Population Prospects
Place in the cohort
Year 1 / 15
The first year of the cohort

What happened in 2025

  • Generation Beta opens on 1 January.
  • These children are born into homes where conversational AI is already ordinary, not new.
  • Their parents are overwhelmingly younger Millennials and older Gen Z — the first parents who grew up entirely online themselves.

Events are included where they plausibly shaped childhood for this cohort, not as a general history of the year.

Every milestone, dated

2029 · ahead
Starts school (age 4, UK and Ireland)

Age 4

2031 · ahead
Starts school (age 6, most countries)

Age 6

2032 · ahead
Starts school (age 7, Sweden, Poland, Indonesia)

Age 7

2038 · ahead
Turns 13

Age 13

2043 · ahead
Finishes high school in the US (class of, if born January–August)

Age 18

2043 · ahead
Turns 18 — voting age in most countries

Age 18

2046 · ahead
Turns 21

Age 21

2055 · ahead
Turns 30

Age 30

2075 · ahead
Turns 50

Age 50

The cohort this year belongs to

2025 — 2039

Generation Beta

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 size: 2.1bn projected
  • Defining shift: Generative AI as ambient infrastructure
  • Aged 0–1 in 2026
NEIGHBOURING YEARS

One year either side

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.

Frequently asked

What generation is someone born in 2025?

They are Generation Beta. The cohort runs from 2025 to 2039 under the McCrindle boundaries used throughout this site.

How old is someone born in 2025?

They turn 1 during 2026, depending on whether their birthday has passed.

How many babies were born in 2025?

About 132 million worldwide, according to UN World Population Prospects.

When will someone born in 2025 start school?

Between 2029 and 2032, depending on the country. The United Kingdom and Ireland start at four, most countries at six, and Sweden, Poland and Indonesia at seven.

When does someone born in 2025 turn 18?

In 2043.

What graduation year (class of) is someone born in 2025?

In most US states, class of 2043 if born January to August and class of 2044 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 2043 (born January to August) or 2044 (born September to December).

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