Age Calculator
Enter Date of Birth and the date you want the age on. Leave “Age at the Date of” as today for current age.
About Age Calculator
Calculate your exact age in years, months, and days from a birth date with this free online age calculator. It also works for any pair of dates, so you can measure how long ago an event happened or check eligibility against an age requirement. Leap years and varying month lengths are handled correctly for accurate results instead of a naive day count divided by 365.
People use an age calculator for forms, sports eligibility, school cutoffs, and curiosity. HR and admin teams check whether someone meets a minimum age on a given date. Historians and genealogists measure spans between two events. Because the result splits years, months, and days, you can answer both how old and how many days until the next birthday style questions with the same tool.
Enter a date of birth and an as-of date, which defaults to today when you want current age. The calculator does not ask for a name or store a history. For adding months to a deadline, use the date calculator. For converting epoch numbers, use the timestamp tools. This page stays focused on age and elapsed calendar time.
Everything is computed in your browser, so birth dates are never uploaded or stored. Use this free age calculator and date of birth calculator whenever you need a private, exact age in years, months, and days.