Age Calculator Australia – Calculate Your Exact Age
Use our free age calculator to calculate your exact age from your date of birth. Find your age in years, months and days, plus see your total months, weeks and days and your next birthday.
Simply enter your date of birth and the date you want to calculate your age on.
How to Use the Age Calculator
Calculating your exact age takes only a few seconds:
- Enter your date of birth.
- Choose the date you want to calculate your age on. By default, this is today's date.
- Select Calculate Age.
- View your exact age in years, months and days.
The calculator also provides additional information such as your approximate total months, weeks and days.
How Old Am I?
Your age is the amount of time that has passed between your date of birth and a particular date.
For example, if someone was born on 15 January 2000 and their age is calculated on 15 January 2026, they are exactly:
26 years old
However, if the calculation date is 10 January 2026, they have not yet reached their birthday and are therefore still 25 years old.
Our age calculator automatically accounts for whether your birthday has occurred in the selected year.
Calculate Age from Date of Birth
To calculate your age manually, compare your date of birth with today's date.
You first calculate the difference between the years and then determine whether your birthday has already occurred during the current year.
For example:
Date of birth: 10 June 1995
Calculation date: 10 August 2026
The person's age is:
31 years and 2 months
Calculating exact ages manually becomes more complicated when the dates involve different month lengths or leap years, which is why an online age calculator is useful.
What Does the Age Calculator Show?
Our age calculator provides more than just your age in completed years.
Your results can include:
- Exact age in years, months and days
- Age in total months
- Age in total weeks
- Age in total days
- Day of the week you were born
- Date of your next birthday
- Days remaining until your next birthday
This makes the calculator useful when you need more precision than simply knowing your age in years.
Age in Years, Months and Days
Most people describe their age using completed years.
For certain applications, however, you may need a more precise result.
For example, instead of:
Age: 30 years
an exact age calculation might show:
30 years, 4 months and 12 days
The calculator determines this automatically using your date of birth and selected calculation date.
Calculate Age on a Specific Date
You don't have to calculate your age only as of today.
You can change the Age at Date field to calculate how old you were—or will be—on another date.
This can be useful for determining your age on:
- A previous date
- A future birthday
- An application date
- A school or university commencement date
- A travel date
- A competition eligibility date
- An insurance or administrative date
Simply select the relevant date instead of today's date.
Calculate Someone's Age from Their Birthday
If you know someone's date of birth, you can use the calculator to determine their age without manually counting years and months.
Enter their birthday in the Date of Birth field and select the date on which you want their age calculated.
The calculator will return their completed years as well as a more detailed age breakdown.
Why Can Age Calculations Be Complicated?
Subtracting the birth year from the current year does not always give the correct age.
For example:
Birth date: 20 December 2000
Calculation date: 1 August 2026
Simply calculating:
2026 − 2000 = 26
would be incorrect because the person's birthday has not yet occurred in 2026.
Their age is still:
25 years
You must therefore consider the day, month and year when calculating someone's age.
Age Calculator and Leap Years
Leap years contain 366 days instead of 365, with an additional day on 29 February.
People born on 29 February therefore have a birthday date that only occurs during leap years.
The age calculator takes calendar dates into account when calculating elapsed time.
What Is My Age Today?
To calculate your age today, enter your date of birth and leave the Age at Date set to today's date.
The calculator will show your current age in years, months and days.
For example:
Date of birth: 1 January 2000
Date: 1 January 2026
Age: 26 years
If the date were 31 December 2025, the age would still be 25 years.
Age Calculator for Australian Users
Easy Calculator's Age Calculator is designed as a simple online tool for Australian users, but age calculations themselves are based on standard calendar dates and can be used internationally.
Dates are displayed in a familiar day/month/year format where appropriate.
No registration is required and the calculator is free to use.
Frequently Asked Questions
How do I calculate my exact age?
Enter your date of birth into the age calculator and select today's date or another calculation date. The calculator will determine your age in years, months and days.
How old am I if I was born in 2000?
Your exact age depends on your full date of birth and whether your birthday has occurred this year. Enter your complete date of birth into the calculator for an exact result.
Can I calculate age on a future date?
Yes. Change the calculation date to a future date to determine how old you will be on that date.
Can I calculate how old I was on a previous date?
Yes. Select a previous calculation date that falls after your date of birth. The calculator will show your age on that date.
Does the calculator account for leap years?
Yes. Calculations use actual calendar dates, including leap years.
Can I calculate my age in days?
Yes. In addition to years, months and days, the calculator displays your approximate total age in months and weeks and your total elapsed days.
How many days are in a year?
A standard year contains 365 days, while a leap year contains 366 days.
Because years and months do not all contain the same number of days, multiplying your age by 365 does not provide an exact lifetime day count.
Is this age calculator free?
Yes. Easy Calculator's Age Calculator is free to use and requires no registration.
Calculate Your Age Now
Use the Age Calculator above to find your exact age from your date of birth.
Enter your birthday and calculation date to instantly see your age in years, months and days, along with additional age and birthday information.