How to calculate your age
- Enter the date of birth using the date picker. On a phone, the picker scrolls through days, months and years.
- Optionally choose another date in "Calculate age on" to find the age on a past or future date. Leave it empty to use today.
- Read the result. Your exact age appears straight away, along with the weekday you were born on.
- See the extras: your age in months, weeks, days and hours, and how many days are left until your next birthday.
Features
- Exact age in years, months and days, correct for leap years and months of different lengths.
- Age on any date, for cut-off dates on application forms.
- Totals in months, weeks, days and hours.
- Next birthday countdown, with the date and day of the week.
- Day of the week you were born, a surprisingly common question.
- Correct handling of 29 February birthdays.
- Instant and private. No button to press and no data saved.
Why use Fileora's age calculator
Working out an age by hand sounds simple until months and leap years get involved. Is someone born on 31 January one month old on 28 February? How many days has a person born in a leap year lived? This calculator uses proper calendar maths so you get the same answer an official form would expect, not an approximation based on 365-day years.
It's quick to use on a phone, needs no signup, and keeps your date of birth private because nothing is sent to a server. Parents use it to check school admission ages, students to confirm exam eligibility, and HR teams to verify minimum-age rules.
Pair it with our other calculators and tools: check a healthy weight range with the BMI calculator, or count the words in an application with the word counter.
When exact age matters
Many official processes use an age "as on" a specific date rather than today. Government job adverts often state an age limit on the closing date of applications. School admissions use an age on a cut-off date, usually the start of the academic year. Exams, sports age groups and passport rules for minors also depend on exact age. Whenever a form asks for your age on a particular date, use the second date field so your answer matches what the reviewer will calculate.