Generation Overlap Calculator
How many years two generations will be alive at the same time, and the window in which a great-grandparent and a Beta child overlap.
Baby Boomers and Generation Beta overlap for about 19 years, from 2025 to around 2044 — the only window in which the two cohorts, 77 years apart at their midpoints, are alive together.
Generation Overlap Calculator
Frequently asked
Is the Generation Overlap Calculator free?
Yes. Every tool on AlphaBetaMinds is free, needs no account and has no usage limit.
Does this tool store what I type?
No. It runs entirely in your browser. Your inputs are never sent to our server, and nothing is logged.
How accurate is it?
It uses the McCrindle generation boundaries (Gen Alpha 2010–2024, Gen Beta 2025–2039) and UN World Population Prospects vital rates. Sources and formulas are on our methodology page.
Can I use the result in an article or report?
Yes, with a credit and a link back to this page. See our terms of use for the full licence.
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