Find out how old a person is by entering their date of birth and a measurement date. Calculate the exact chronological age in years, months, and days quickly and easily.
Exact age is:
Age in years:
Age in months:
Age in weeks:
Age in days:
Day of birth:
Next birthday:
Zodiac sign:
Chronological age is the time elapsed from a date of birth until today (or another measurement date). In other words, it is the number of years, months, and days of existence on the planet. Currently, chronological age is used as the standard metric to assess the level of aging of an individual in an ecosystem or population. This measurement method is applicable to any living being, since it uses time, a universal unit, as a reference.
To find out a person's exact age, we can calculate the difference between their date of birth and a measurement date (today or another date). Since time is measured in years, months, and days, solving this operation is not trivial. That is why we provide this online age calculator so you can find out a person's chronological age quickly and easily.
Calculating age using Microsoft Excel can be useful for tracking, analysis, or reports that require this information. Below is a simple method to obtain age in years, months, and days from a date of birth:
In an Excel cell, you can use the following formula to calculate age from a date of birth: =DATEDIF(Date_of_Birth, TODAY(), "Y") & " years, " & DATEDIF(Date_of_Birth, TODAY(), "YM") & " months, " & DATEDIF(Date_of_Birth, TODAY(), "MD") & " days"
Replace "Date_of_Birth" with the reference to the cell containing the individual's date of birth. This formula uses Excel's DATEDIF function to calculate the difference between the date of birth and the current date (TODAY()), providing the age in years, months, and days as a text string.
Let's say the date of birth is in cell A2. The formula would look like this: =DATEDIF(A2, TODAY(), "Y") & " years, " & DATEDIF(A2, TODAY(), "YM") & " months, " & DATEDIF(A2, TODAY(), "MD") & " days"
By entering this formula in an Excel cell, it will display the person's age in years, months, and days, using the current date for the calculation. This formula allows you to obtain a person's exact age quickly and accurately in Microsoft Excel for any date of birth.
As mentioned in the previous question, chronological age uses time (the same for everyone) as the base unit to measure a person's level of aging. In contrast, biological age uses the state of wear and tear of the individual's body as the base unit to determine their level of aging. This means that two people with the same chronological age can have different biological ages. The difference between biological ages is determined by the genetics and lifestyle habits of each individual, affecting the rate of aging of each organ in the body.