Millennials are generally defined as people born between 1981 and 1996. This range is widely accepted by sources such as the Pew Research Center, the Brookings Institution, and Encyclopædia Britannica

. Given the current year is 2025, millennials would be approximately between 29 and 44 years old. This means the youngest millennials are about 29 years old, and the oldest are about 44 years old as of 2025

. Some variations exist in the exact birth years defining millennials, with a few sources extending the range slightly earlier or later by a year or two, but the 1981–1996 range is the most commonly used and accepted.