Is someone born in 2001 25 years old?
They are 25 if their birthday has already passed this year, and 24 if it has not. The calculator above settles it once you give the full date.
How old are you if you were born in 2001?
It depends on whether the birthday has already happened this year: someone born in 2001 is 25 if it has, and 24 if it has not. Enter the full date below for the exact age.
Result
About the year 2001
2001 began on a Monday and was not a leap year, with 365 days. 9,356 days have passed since 1 January 2001.
Age in whole years only counts the birthday that has already happened. That is why two people born in the same year can be different ages today — and why the answer flips from 24 to 25 on the birthday itself.
Frequently asked questions
Was 2001 a leap year?
No. 2001 had 365 days, with no 29 February. Leap years are divisible by 4, except centuries that are not divisible by 400.
What day of the week did 2001 start on?
1 January 2001 fell on a Monday.
Other tools
Date Difference
Count the days, weeks and months between any two dates.
Days Until
How many days are left until a holiday, a deadline or any future date.
Business Days
Count business days between dates, or find when a deadline in working days lands.
Time Zone Converter
What time is it there — and what time will your meeting be for them.
Week Number
Which week of the year a date falls in, and the week it belongs to.
Day of the Year
The sequential day number, how many remain, and how much of the year has passed.