This age calculator works out exactly how old someone is from their date of birth to today or to any chosen date. Instead of a rough number of years, it breaks the result down into years, months, and days, and can also express your age in total months, weeks, days, or even hours for fun. It correctly handles leap years and varying month lengths, so the result is precise rather than approximate. People use it to confirm an exact age for forms and eligibility, to count down to a birthday or milestone, to work out the gap between two dates, or simply out of curiosity. Because the calculation is just date math done in your browser, it is instant and completely private; no birth dates are uploaded or recorded anywhere.
Calculate exact age in years, months, and days from a birth date, with next birthday countdown.
Age is calculated using calendar years, months, and days. Leap-day birthdays use February 28 in non-leap years for next-birthday estimates.
