How old is someone born in 2025?
Subtract 2025 from 2026 to get 1. If the person's birthday has not happened yet this year, subtract one, making the age 0. A full birth date is needed for an exact result in years, months, and days.
Why two ages are shown
A birth year alone does not include the month and day. During 2026, everyone born in 2025 turns 1, but before that birthday they remain 0.
About generation labels
Generation Alpha is a commonly used label for people born in this period. Generation boundaries vary by source and are descriptive, not scientific or legal categories.