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Your exact age in years, months and days.
The Age Calculator finds how old someone is on a given day, expressed as complete years, months and days. Leave the second date blank to get the age as of today, or set it to any date to find the age on a birthday, anniversary or milestone.
It also converts the age into total months, weeks, days and hours, which is useful for babies' ages, record-keeping and eligibility checks.
Years, months and days are counted by calendar rather than by fixed lengths: months carry the number of days they actually have, and leap days are included. Total days is (reference − birth) ÷ 86,400,000 ms.
Yes. Set the second date to any future day to see how old you will be then, for example on a specific anniversary or exam date.
It uses whole calendar months and the remaining days, so the months figure respects each month's real length rather than assuming 30 days.
Differences usually come from time zones or whether the current day is counted. This tool measures from midnight to midnight in your local time.