If you were born in 1985, you are 40 or 41 years old in 2026 (depending on whether your birthday has passed). Born in 1985 age: 41 years.
Born in 1985: you are 40 years old before your birthday in 2026, and 41 years old after. Generation: Millennial.
If born in 1985, you are 40 or 41 years old in 2026.
Born in 1985: Millennial.