Age Calculator
Enter a date of birth to get the exact age in years, months and days, total days lived, the day of the week you were born and days until the next birthday.
Age milestones in the US
| Age | What changes |
|---|---|
| 18 | Vote, sign contracts |
| 21 | Legal drinking age |
| 26 | Last year on a parent's health plan |
| 50 | 401(k) and IRA catch-up contributions |
| 59½ | Penalty-free IRA and 401(k) withdrawals |
| 62 | Earliest Social Security retirement benefits |
| 65 | Medicare eligibility; extra standard deduction |
| 67 | Full retirement age (born 1960 or later) |
| 73 | Required minimum distributions begin |
Frequently asked questions
How is age calculated?
Count full years from the birth date, then full months, then the remaining days. Someone born June 15, 1990 is 36 years, 4 months and 10 days old on October 25, 2026.
How do leap-day birthdays work?
If you were born on February 29, this calculator treats February 28 as your birthday in common years. Legal rules vary by state.
Can I find someone's age on a past or future date?
Yes. Change the 'Age on' date to any date after the birth date.