Age Calculator
Find your exact age in years, months and days, plus your next birthday
Private: everything happens in your browser. Nothing is uploaded.
How to use the Age Calculator
- Choose the date of birth.
- Leave "age at" as today, or pick another date.
- Read your exact age and the extra facts below.
About this tool
Enter a date of birth and this calculator shows the exact age in years, months and days. It also tells you the total number of days you have lived, the weekday you were born on and how long until your next birthday.
You can change the "age at" date to find out how old someone was, or will be, on any day. That is handy for forms with an age cut-off.
- Years, months and days
- Total days, weeks and hours
- Next birthday countdown
- Age on any date
Frequently asked questions
How is age calculated?
The calculator counts full years since the date of birth, then the remaining full months and days, using the real length of each calendar month.
Can I find my age on a past or future date?
Yes. Change the "age at" date to any day. This is useful for application forms with an age limit on a specific date.
What if I was born on 29 February?
In years that are not leap years, the calculator counts your birthday on 28 February.
Is my date of birth stored?
No. Everything is calculated in your browser and nothing is saved or sent.