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Rotina Diária

Age Calculator

Find your exact age in years, months, and days, and see how many days until your next birthday.

Defaults to today. Change this to find your age on a specific date.

Processed on your device. Nothing you type is sent anywhere.

How to use: Age Calculator

  1. Enter your date of birth.
  2. Leave the reference date set to today, or choose another date to find out your age on that day.
  3. See your exact age, days lived, and countdown to your next birthday.

About this tool

Age is calculated using the calendar: completed years are counted from each birthday, followed by completed months and then remaining days. We also show your total months, weeks, and days lived, plus the day of the week you were born.

For people born on February 29, we use February 28 as their birthday in non-leap years. Useful for checking age requirements for applications, school enrollment, retirement, or official documents.

Frequently asked questions

How do I calculate my age on a specific date?

Change the “Calculate age on” field to your chosen date—for example, an application deadline or school enrollment cutoff date.

When do people born on February 29 celebrate their birthday?

In non-leap years, the calculator treats February 28 as the birthday, so the age increases on that day.

Is my data saved?

No. The calculation happens in your browser, and your date of birth is never sent to a server.

Is it really free? Is there a daily limit?

It's free with no daily limits. Processing happens on your device, so there's no per-use cost and no need to limit you.

Does it work on phones?

Yes. The site works in any modern browser on Android, iPhone, Windows, Mac, and Linux—no installation needed.

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