Everyday Calculation

Free calculators and unit converters for general and everyday use.

Calculators » Health » Chronological Age Calculator

Age Calculator

Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can calculate your age on any given day from your birth date. You can even find the number of months, weeks, days, hours, minutes, and seconds since you were born.

Result window

Download: Use this age calculator offline with our all-in-one calculator app for Android and iOS.

Chronological Age

Chronological age signifies how old you are and is defined as the number of years a person has lived from the time he /she was born. A person's age determines when he is eligible for school, work and retirement.

Age calculation

To find age from DoB, we subtract the birth date from current date as described in date duration calculator page. Subtracting dates is similar to subtracting two numbers, except that we borrow 28, 29, 30, or 31 when subtracting day values, and 12 when subtracting month values. This is because 1 year = 12 months, and 1 month = 28, 29, 30, or 31 days depending on the month and the year.

© everydaycalculation.com