Cohort Midpoint Calculator
The exact middle of any cohort, and how far from it a given birth year sits.
A fifteen-year cohort has a midpoint seven years in, and a child one year off that midpoint sits at about 43% through the cohort — the core rather than either edge.
Cohort Midpoint Calculator
Frequently asked
Is the Cohort Midpoint 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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