# Age calculator

> Work out your exact age in years, months and days from your date of birth, as of today or any date. Total days, weeks and your next birthday. Free.

URL: https://tools.cuelark.com/age-calculator
Publisher: Cuelark Team (https://cuelark.com)
Updated: 2026-11-10
Price: free, no sign-up
Privacy: runs in the browser; files are not uploaded

Enter a date of birth to see the exact age in years, months and days, plus total months, weeks and days and the countdown to the next birthday. Change the 'as on' date to find the age on any day, past or future.

## How to use it

1. Enter the date of birth.
2. Leave 'Age as on' at Today, or pick another date or an exam cut-off.
3. Read the age in years, months and days; totals and next birthday are below.

## Details

- **Method:** Completed years, then completed months, then remaining days, the way age is stated on forms
- **Leap-day birthdays:** 29 February birthdays fall on 28 February in common years for the next-birthday count
- **Calendar:** Gregorian, every date from 1900 to 2200, leap years included
- **Time zones:** Whole days in plain calendar dates, so time zones and daylight saving never move the answer by a day

## Questions

### Is anything I type sent anywhere?

No. The calculation runs in this page with JavaScript; dates, text and numbers are never uploaded or stored on a server.

### How is age in years, months and days calculated?

Count whole years from the birth date, then whole months, then the days left. Born 15 January 2000, on 10 November 2026 you are 26 years, 9 months and 26 days: 26 years to 15 January 2026, 9 months to 15 October, 26 days to 10 November.

### Does it handle leap years?

Yes. The day counts use the real calendar, so 29 February is counted in leap years, and someone born on 29 February is a year older each 28 February in common years for the countdown.

### How do I check my age for an exam?

Use the age as on date calculator. Exam notices fix a cut-off date, and age limits are stated as 'attained X and not attained Y' on that date; the exam page applies exactly that rule.

### Can I find the age at a past date?

Yes. Pick 'Another date' and enter any date after the birth date, for example to check age at the time of an event or a document.

## Related tools

- [Age as on date calculator for exams](https://tools.cuelark.com/age-as-on-date)
- [Days between two dates](https://tools.cuelark.com/days-between-dates)
- [Date calculator](https://tools.cuelark.com/date-calculator)
- [CGPA to percentage calculator](https://tools.cuelark.com/cgpa-to-percentage)