Exact Age Calculator

Get precise age results in calendar years, months, days, and total time units.

Calculate Exact Age

Leave blank for your exact age today.

Exact Age in Years, Months, and Days

Exact age is the calendar difference between a birth date and a comparison date. That means months and days are counted according to the real calendar, not a rough average.

The calculator also converts the result into total weeks, days, hours, and minutes for quick sharing or record keeping.

Exact Age Results

  • Calendar age: Precise years, months, and days.
  • Total elapsed time: Months, weeks, days, hours, and minutes since the start date.
  • Date facts: Birth weekday, zodiac sign, Chinese zodiac sign, and birthday countdown.

100% Private

Exact age calculations happen locally in the browser without sending your dates to a server.

Popular Age Calculators

Age Calculator by Date Calculate exact age on any past or future date. Birthday Age Calculator Find birthday age, next birthday, and date facts. Exact Age Calculator Get years, months, days, hours, and minutes. Age Between Two Dates Compare two dates with a date difference calculator. Date Difference Calculator Find the exact duration between any two dates.

Frequently Asked Questions

What is exact age?
Exact age is the full calendar difference between a birth date and a comparison date, shown in years, months, and days.
Can exact age include hours and minutes?
Yes. The calculator also estimates total hours and minutes since the birth date or start date.
Why does exact age differ from age in days divided by 365?
Calendar years and months have different lengths, so exact age must account for leap years and varying month lengths.
Can I calculate exact age for a past date?
Yes. Enter a comparison date to calculate exact age on that date.

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