Quick facts if you are 45
| Born in | 1980 or 1981 |
| Generation | Generation X or the Millennials (Generation Y) |
| Chinese zodiac | Monkey (1980) or Rooster (1981) |
| Days old (approximately) | 16,436 to 16,800 |
How to work it out
Subtract your age from the current year: 2026 − 45 = 1981. That is your birth year if your birthday has already happened this year. If it hasn’t, subtract one more year: 1980. The same rule works for any age, and you can check the result the other way round with our born in 1981 page.
Milestones
Milestones you have already reached:
- 16 (1996 or 1997): Full driver’s license possible in many US states
- 18 (1998 or 1999): Voting age in US elections
- 21 (2001 or 2002): Legal drinking age in the US
- 25 (2005 or 2006): Car rental usually without a young-driver fee
- 26 (2006 or 2007): Coverage on a parent’s health plan ends (Affordable Care Act)
- 35 (2015 or 2016): Old enough to be President of the United States
Milestones still ahead:
- 62 (2042 or 2043): Earliest age to claim (reduced) Social Security benefits
- 65 (2045 or 2046): Medicare eligibility
If you were born in 1981, your Social Security full retirement age is 67; for 1980 it is 67.
Frequently asked questions
If I’m 45, what year will I turn 55?
In 2036 if your birthday has passed this year, otherwise in 2035.
What year did I turn 18 if I’m 45?
In 1999 if your birthday has passed this year, otherwise in 1998.