# Generation Calculator — Find Your Generation by Year > Find your generation from a birth year — Boomer, Gen X, Millennial, Gen Z or Gen Alpha — with its year span and current age range. Compare two people, free. - **Category:** Unique & Playful - **Interactive calculator:** https://youcalc.com/en/unique-playful/generation-calculator/ - **Price:** Free, no sign-up required ## Overview Enter a birth year and this calculator names the generational cohort it falls into — from the Greatest Generation through Baby Boomers, Generation X, Millennials and Generation Z to Generation Alpha. It shows the cohort's birth-year span, how old that cohort is today, and the exact age of someone born that year. Add a second birth year to see whether two people share a generation and how many cohorts apart they are. It's handy for settling "which generation am I?" debates, writing about audiences, or just placing yourself on the generational timeline. ## How to read your result The headline is the cohort name for your birth year. Below it, "Birth years" is the cohort's span (e.g. Millennials are 1981–1996), "Age now" is your own age this year (the as-of year minus your birth year), and "Cohort age range now" is how old the whole cohort is today — the youngest members (born in the last year of the span) up to the oldest (born in the first year). The timeline chart plots every generation as a horizontal band across the years, with your cohort highlighted so you can see where you sit relative to the others. In compare mode a second band lights up and a verdict line states whether you share a generation, how many cohorts separate you, and the gap in birth years. Boundaries are conventions, not law, so treat edge years as approximate. ## Method The calculator stores each generation as a [start, end] birth-year range and looks up the one cohort whose start ≤ birth year ≤ end. A birth year before 1901 is labelled as before the Greatest Generation; one after 2024 as the cohort after Generation Alpha. From the matched cohort it derives three figures using calendar-year arithmetic: your age = as-of year − birth year; the cohort's youngest current age = as-of year − cohort end year; and the cohort's oldest current age = as-of year − cohort start year. Compare mode resolves the second birth year the same way, then reports whether the two cohort indices match, their absolute difference (cohorts apart), and the absolute difference in birth years. Ages are calendar-year based and ignore month and day, so an individual's exact age can be one year lower if their birthday has not yet occurred in the as-of year. ## Example - **Setup:** Birth year 1990, as-of year 2026, single person. - **Result:** 1990 falls in the Millennials (Gen Y) cohort, which spans 1981–1996. A person born in 1990 is 36 in 2026, and the Millennial cohort as a whole is 30 to 45 years old that year. ## Frequently asked questions ### What generation am I? Your generation is the named cohort whose birth-year span contains your birth year. Using the widely-cited Pew Research and Beresford boundaries: Greatest Generation 1901–1927, Silent Generation 1928–1945, Baby Boomers 1946–1964, Generation X 1965–1980, Millennials (Gen Y) 1981–1996, Generation Z 1997–2012, and Generation Alpha 2013–2024. Enter your birth year above to see your cohort, its span, and your current age. ### Are generation boundaries official? No. Generations are a convention for talking about cohorts shaped by similar formative events, not a legal or scientific definition. The Pew Research Center sets the Boomer, Gen X and Millennial cut-offs this tool uses, but other organisations draw the lines a year or two differently. Treat the edge years as approximate rather than exact. ### Where do Millennials end and Generation Z begin? This calculator uses the Pew Research Center cut: Millennials are anyone born 1981 through 1996, and Generation Z begins with 1997. Pew chose 1996 as the last Millennial birth year so the cohort captures people old enough to remember the September 11 attacks and to have come of age during the Great Recession. ### What comes after Generation Alpha? The cohort after Generation Alpha is widely being called Generation Beta, generally starting around 2025. Because the Gen Z/Gen Alpha and Alpha/Beta boundaries are still settling, sources place the Gen Alpha end anywhere from 2024 to 2025; this tool uses 2013–2024 for Generation Alpha and labels later years as the cohort after it. ### Do these labels apply everywhere in the world? These are Western, English-language cohort labels, popularised mainly in the United States. Many other cultures define their own generations around their own history, so the names and exact years here will not map cleanly onto every country. Use them as a common shorthand, not a universal standard. ## Related calculators - [Age Calculator](https://youcalc.com/en/date-time/age-calculator/) - [Your Age in 8 Calendars](https://youcalc.com/en/date-time/multi-calendar-age/) - [Weight on Other Planets Calculator](https://youcalc.com/en/unique-playful/weight-on-planets/) - [Chinese Gender Predictor](https://youcalc.com/en/unique-playful/chinese-gender-predictor/) - [Corrected Age Calculator](https://youcalc.com/en/date-time/corrected-age/) ## Sources - https://www.pewresearch.org/short-reads/2019/01/17/where-millennials-end-and-generation-z-begins/ - https://www.beresfordresearch.com/age-range-by-generation/ - https://en.wikipedia.org/wiki/Generation_Alpha --- Interactive version: https://youcalc.com/en/unique-playful/generation-calculator/ · From YouCalc — https://youcalc.com