This chronological age calculator returns your exact age in years, months weeks and even your age in days, hours minutes and seconds for today or from the past. Discover more on this subject and check an example calculation below the form.

Birth Date:*
Testing date:*

How does this chronological age calculator work?

This is a time tool that can help you calculate age at any moment or any point in your life from the past, as per today or your age at a specific testing date from future. In order to do that the chronological age calculator requires you to input the following details:

  • Your birth date
  • Testing date (This means that you should choose whether to calculate your age:

- as it is today. In this case you should let the testing date is as it is default settled to the current date;

- as it was in a past date. In this case you should input a date from the past;

- as will be at a certain future date. In this case you should input one specific date from the future.)

The results displayed with your data comprise of:

  • Your age in years today/for a past date/for a future date by case;
  • Your age expressed in months, weeks, days, hours, minutes and even seconds with the data counting on.

Practically when you try to answer a question like: How old am I? you will receive it in all the basic units involved so you can understand better how time has passed.

The concept of chronological age is the exact age of a person all the way down to the certain day or date and is currently used when assessing individuals and trying to test specific abilities or skills that are age related.

Example of a result

Let's take up a short example, Michael is born on September 3rd, 1986 and he gets teste on February 4 2015. What is his chronological age on February 4 2015?

Chronological age formula = Year / Month /Day  of Testing Date - Year / Month / Day of Birth Date.

Chronological age = (2015  / 02 / 04) - (1986 / 09 / 03). Which means that Michael is:

You are 28 years, 5 months and 11 days old...

  or 341 Months old
  or 1483 Weeks old
  or 10381 Days old
  or 249156 Hours old
  or 14949371 Minutes old
  or 896962262 Seconds old

And, Your next birthday will be in:
6 Months 29 Days 12 Hours 48 Minutes 58 Seconds

Time milestones

If you’ve just found out how many days or hour old you are, wouldn’t you be interested to know when you will reach a round number of days or even minutes? In the table below there are some ideas for you…

Unit Milestone Around the age
Days 1,000 … 2
10,000 … 27
15,000 … 42
20,000 … 54
Hours 10,000 … 1
50,000 … 5
100,000 … 11
500,000 … 57
Minutes 1,000,000 … 2
5,000,000 … 9
10,000,000 … 19
40,000,000 … 76











04 Feb, 2015