Every generation.
In birth-year order.

The names and dates used by our calculator, with a note on where each boundary comes from.

Dates can vary, especially for Alpha and Beta. These are the ranges we use.

1901–1927

Greatest Generation

The earliest group in this calculator, with lives spanning the Depression, World War II, and the decades that followed.

Our calculator begins at 1901. Older birth dates fall outside its supported range.

1928–1945

Born from the late 1920s through the end of World War II. The name describes a historical cohort, not a personality.

Other countries and researchers may use different names or boundaries.

1946–1964

Named for the rise in U.S. births following World War II. This is one of the more firmly established generation ranges.

The U.S. Census Bureau uses 1946–1964 for the baby boom cohort.

1965–1980

The generation after the baby boom and before Millennials. Its sixteen birth years encompass many different childhoods.

We use the 1965–1980 range in Pew Research Center’s U.S. framework.

1981–1996

Also called Generation Y. Millennials came of age across the turn of the millennium, as the internet became part of everyday life.

People born in 1996 are Millennials in this calculator; 1997 begins Gen Z.

1997–2012

The generation after Millennials. Many grew up with mobile internet, but access and experience varied widely.

Born in 2010–2012? Some frameworks place you in Gen Alpha. We use 2012 as Gen Z’s final birth year.

2013–2024

The generation following Gen Z in our timeline. Its boundaries are still debated, and its story is still being written.

We begin Alpha in 2013 and end it in 2024 for this calculator. McCrindle instead begins Alpha in 2010.

2025 onward

A proposed name for children born from 2025 onward. It is too early to know which experiences will define this group.

This follows McCrindle’s proposed starting year. The name and boundaries are provisional; 2039 is a proposed endpoint, not a settled fact.