Age Calculator
Calculate exact age from a date of birth in years, months, weeks and days. See the day you were born and a countdown to your next birthday. Free.
Runs in your browser. Your files and text never leave your device.
Today by default. Change it to see an age on another date.
How old am I exactly?
Enter a date of birth to see the exact age in years, months and days, plus the total in months, weeks and days, the weekday you were born on and a countdown to the next birthday. Change “Age on” to work out an age on a past or future date, for example for a form, visa or school entry date.
Frequently asked questions
How is age calculated?
Whole years and months are counted first, then the remaining days, the same way birthdays work. Someone born on 29 February has their birthday on 28 February in non-leap years.
Can I find my age on a specific date?
Yes. Change the "Age on" date to any past or future date, for example the date on an application form.