How old is someone born in 1958?
Subtract 1958 from 2026 to get 68. If the person's birthday has not happened yet this year, subtract one, making the age 67. 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 1958 turns 68, but before that birthday they remain 67.
About generation labels
Baby Boomer is a commonly used label for people born in this period. Generation boundaries vary by source and are descriptive, not scientific or legal categories.