Age Calculator
Exact age in years, months, days — plus zodiac and fun facts.
Written by Anil Gautam · Updated
How are years, months and days counted?
The calculator subtracts your birth date from the current date one part at a time. When today's day of the month is smaller than your birth day, it borrows the length of the previous month. Checked on 7 October 2026, a birth date of 20 August 2001 starts with 7 minus 20 days, which is negative, so the 30 days of September are borrowed: 7 plus 30 minus 20 leaves 17 days, and the month count drops from 2 to 1. The age reads 25 years, 1 month and 17 days. On 1 or 2 March, a birthday on the 30th or 31st can need a second borrow, because February is too short. For 31 January 2000 checked on 1 March 2026, February's 28 days only bring the day count to minus 2, so January's 31 are added as well and the age reads 26 years, 0 months and 29 days.
The extra cards use the same dates. For that birth date, total days lived is 9,179, the weekday of birth is Monday, the sign is Leo and the next birthday is 317 days away. Everything is worked out in your browser from your device's clock, so a wrong system date gives a wrong age.
What if you were born on 29 February?
In years without a 29 February, the calculator treats 1 March as your birthday. For someone born on 29 February 2000, the age on 28 February 2026 reads 25 years, 11 months and 30 days, and on 1 March 2026 it becomes 26 years, 0 months and 0 days. The birthday countdown also points to 1 March in those years.
On any birthday, the countdown shows the time to the following one, 365 days, or 366 when a 29 February falls in between, because the current birthday has already started.
Why might the zodiac sign differ from another site?
The sign comes from a fixed table of Western sun-sign dates and uses only the day and month of birth. In this table each sign runs up to and including a set date: Pisces ends on 21 March and Aries starts on 22 March, for example. Published tables disagree by a day at these boundaries, so if your birthday falls within a day of a change, another source may show the neighbouring sign.
How do you check your age on a cutoff date?
This calculator always measures to the current moment, while job and exam notices often set an age limit as on a fixed date. Add or Subtract Days from Date handles that case: enter your birth date and add the age limit in years to see the day you reach it. Someone born on 20 August 2001 turns 25 on Thursday, 20 August 2026, which you can then compare with the cutoff. For the number of days between your birth date and any other date, use Date Difference Calculator.