Age Calculator

Use this age calculator to measure exact age from a birth date to today or to any custom end date. It is useful for forms, school records, HR, insurance, family planning and quick checks whenever you need an accurate age without counting the calendar manually.

After you enter the birth date, the tool returns age in years, months and days, plus total months, weeks and days. It also shows the next birthday and the weekday of birth, which makes the result more helpful for everyday reference.

If you need a different comparison, simply change the end date. For other calendar math, the site also includes tools to compare two dates and to add or subtract days from a chosen date.