Age Calculator: How Old Am I Exactly?
Enter your date of birth to see your exact age in years, months and days, the day of the week you were born, and how long until your next birthday.
How this age calculator works
The calculator counts age the way people do in everyday life. It finds the number of complete years since your birth date, then the complete months since your last birthday, then the remaining days. That is why the result can differ by a day from tools that simply divide the total number of days by 365, which ignores leap years and the different lengths of months.
Age on a specific date
Change the "Calculate age on" date to see how old someone was or will be on a particular day, such as a school enrollment cutoff or the date on an application form. All the math runs on your device, and no date is ever sent to our server.
When the day gets close, browse birthday wishes by person or turn your message into a personalized card.
Frequently asked questions
Is my date of birth stored anywhere?
No. The calculation runs entirely in your browser. Nothing is sent to our server, and nothing is kept after you close the page.
How are February 29 birthdays handled?
In years without a February 29, the next birthday is shown on February 28, which is the most common everyday convention. Your age in years, months and days is still counted from your real birth date.
Why does my result differ from another calculator by one day?
Some calculators divide total days by 365 or treat every month as 30 days. This one counts complete calendar years and months, which is how most people state their age.