This tool has two modes. Enter a date of birth to get your exact age in years, months and days, or pick two dates to count the days and weeks between them.
Age is measured from your birth date to today, adjusting for months of different lengths and leap years. The days-between mode counts calendar days from one date to another, ignoring the time of day.
Work out an exact age for forms, count down to a deadline or event, find how many days you have lived, or measure a project’s length. Everything updates instantly as you change the dates.