Enter the required information
Use the fields in the tool above and keep units and formats consistent.
Find your exact age on any date in years, months and days. Useful for exam age cut-offs, school admissions, HR records and insurance forms.
Age
0 years
Age results are estimates for planning and should be checked against current official rules or professional advice where applicable.
Someone born on 15 August 1990 is 36 years, 2 months and 11 days old on 26 October 2026. That is 13,221 days in total. Counting this by hand means juggling month lengths and leap years, and it is easy to slip by a day.
This age calculator needs just your date of birth and an "as on" date. The second date defaults to today, but you can set any past or future date. The result shows completed years, months and days, plus total months, weeks and days lived.
Plenty of forms ask for age "as on" a specific cut-off date rather than today. A single day can decide eligibility.
Subtracting birth year from current year only works after your birthday has passed. Before that, you are a year younger than the simple difference suggests. Months cause further trouble because they range from 28 to 31 days.
Leap years add another twist. Someone born on 29 February has a real birthday only once every four years. Most legal systems treat 28 February or 1 March as the birthday in other years. The rule varies by country and purpose.
The ToolsMate age calculator counts full calendar months first, then the remaining days. That matches how most official forms expect age to be written.
Different organisations describe age in slightly different ways. Knowing the terms prevents a wrong entry.
If an age calculator result sits right on a cut-off line, check the notification wording carefully. "Not less than 21" and "must have attained 21" can be read differently.
Use the fields in the tool above and keep units and formats consistent.
Review the result shown in the output area.
Confirm that the result matches your situation before using it for a decision.
The difference between the birth date and current date is calculated in years, months and days.This describes the core logic used by the tool. Check any assumptions that may affect your result.
Use accurate inputs and keep units consistent.
Review the assumptions before using the result for a decision.
Compare important results with an independent or official source.
Enter your date of birth and the cut-off date in the age calculator. It counts completed years first, then full months, then remaining days. Exam notifications usually state this date clearly, so always use it rather than today's date.
In non-leap years, most systems treat the birthday as 28 February or 1 March. Indian official records generally go by completed years on the given cut-off date. The calculator still counts every day accurately, including the extra day in leap years.
Age last birthday counts only completed years. Age nearest birthday rounds up once you are more than six months past your last birthday. Insurers use either method, which is why your quoted premium may change before your actual birthday.
A fixed cut-off date treats every applicant equally, whatever day they apply. UPSC, for example, uses 1 August of the exam year. Check each notification, since cut-off dates and upper age relaxations differ between exams and categories.
Yes, the result shows total months, weeks and days lived alongside years, months and days. Someone born on 15 August 1990 has lived 13,221 days by 26 October 2026. That figure counts every leap day in between.
Under the NEP framework, many states now require a child to be six years old for Class 1 admission. The cut-off date varies by state and board. Check your state education department's latest circular before applying.
No, it measures elapsed time, so your birth date counts as day zero. On your first birthday, you are exactly one year and zero days old. This matches how official documents and exam bodies measure completed age.
Explore other useful tools across the site.