Wondering exactly how old you are? Use our free Age Calculator to find your age in years, months, and days. Simply enter your date of birth and choose the date you want to calculate your age on.
The calculator also shows your total months, weeks, days, hours, and minutes, along with the day of the week you were born and the date of your next birthday. It uses actual calendar dates, including different month lengths and leap years, to give you a more precise result.
Enter your date of birth below to get started.
- Date of birth: —
- Day of birth: —
- Total months: —
- Total weeks: —
- Total days: —
- Total hours: —
- Total minutes: —
What Is an Age Calculator?
An Age Calculator is an online tool that calculates how much time has passed between a person’s date of birth and a selected date. Instead of giving only an age in whole years, it can show the result in years, months, and days.
This is useful when you need to know your exact age for everyday purposes, forms, applications, birthdays, school or work requirements, or simply out of curiosity.
Our calculator also lets you choose a specific date instead of today, which means you can find out how old you were on a past date or how old you will be on a future date.
How to Calculate Your Age
Using the calculator is simple:
- Enter your date of birth.
- Choose the date you want to calculate your age on. Today’s date is selected by default.
- Click Calculate.
- Your exact age will be displayed in years, months, and days.
- You can also check your total days, weeks, months, hours, minutes, and next birthday.
The calculation uses calendar dates rather than simply dividing the number of days by 365, which helps account for different month lengths and leap years.
How Is Age Calculated?
Your exact age is normally expressed as completed years, months, and days.
For example, if someone was born on January 15, 2000, and the age is calculated on June 19, 2026, the result would be:
26 years, 5 months, and 4 days.
The calculation first determines the completed years, then the remaining complete months, followed by the remaining days. This approach handles months with 28, 29, 30, or 31 days and accounts for leap years.
Can I Calculate My Age on a Specific Date?
Yes. You don’t have to calculate your age only for today.
For example, you can use the calculator to find:
- How old you were on a particular date
- How old you will be on a future date
- Your age when you started school
- Your age on a wedding or other important date
- Someone’s age on a historical date
Simply change the Calculate Age On date before calculating.
What Does the Age Calculator Show?
Depending on the information entered, the calculator provides several useful results:
- Exact age in years, months, and days
- Total completed months
- Total weeks
- Total days
- Total hours
- Total minutes
- Day of the week you were born
- Date of your next birthday
- Days remaining until your next birthday
This makes it useful for both a quick “How old am I?” calculation and more detailed date calculations.
Frequently Asked Questions
Q1. How do I calculate my exact age?
Enter your date of birth into the calculator and click Calculate. The calculator compares your birth date with today’s date and gives your exact age in years, months, and days.
Q2. Can I calculate my age on a specific date?
Yes. Enter your date of birth and then change the Calculate Age On date to any past or future date. The calculator will show how old you were or will be on that date.
Q3. Does the Age Calculator account for leap years?
Yes. The calculation uses actual calendar dates, so leap years and February 29 are taken into account when determining the difference between dates.
Q4. Can I find out how many days old I am?
Yes. After entering your date of birth, the calculator shows your total number of days, along with weeks, months, hours, and minutes.
Q5. How accurate is an online Age Calculator?
An age calculator can give a calendar-accurate result when it uses the actual dates rather than approximating every year as 365 days or every month as 30 days. Your result can still depend on how a particular calculator handles special cases such as February 29 birthdays.