Age Calculator – Exact Age in Years, Months and Days

How to use the age calculator

1. Enter your date of birth.
2. Leave Age as on set to today, or change it to the date you need — for example the cut-off date in an exam notification.
3. Read your exact age in years, months and days, plus totals in months, weeks and days.
4. Optional: enter a minimum and maximum age to check whether you fall within an age limit on that date.
5. See the date and weekday of your next birthday and how many days are left.

How your exact age is calculated

The calculator works with calendar dates, the same way you would count on a calendar:

1. It counts how many complete months have passed since your date of birth.
2. Twelve complete months make a year.
3. The days left after the last complete month are the days.

Months have different lengths, so “one month after” is taken as the same date in the next month — or that month’s last day if it is shorter. One month after 31 January is 28 February (or 29 in a leap year).

Example: age as on an exam cut-off date

Suppose a notification asks for your age as on 1 August 2026, and your date of birth is 2 August 2000.

• On 1 August 2026 you are 25 years, 11 months and 30 days old.
• If the limit is “not more than 25 years”, you are still eligible, because you have completed 25 years but not 26.
• One day later you would complete 26.

This is exactly why exams state a fixed “as on” date: everyone’s age is measured on the same day.

Leap years and 29 February

Leap years are counted automatically when the total days are worked out. If you were born on 29 February, the calculator treats 28 February as your birthday in common years.

Things to check in exam and job forms

• Use the exact cut-off date given in the notification, not the last date of applying.
• Relaxations for SC, ST, OBC, PwBD, ex-servicemen and others are added to the upper age limit and differ by recruitment. Add them yourself when checking eligibility.
• Your date of birth must match your certificates (usually the Class 10 certificate).

Who uses an age calculator

• Students and job seekers checking eligibility for government jobs, entrance exams and admissions.
• Parents working out a child’s age for school admission cut-offs.
• HR teams checking retirement dates or service periods.
• Anyone curious about how many days they have lived or when their next birthday falls.

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