Age Calculator — Exact Age in Years, Months & Days
Find your exact age in years, months, days, hours, minutes and seconds. Plus next birthday countdown, zodiac sign, and day of the week you were born.
Last updated: July 2026
Step 1: Date of Birth
Why Use an Age Calculator?
Knowing your exact age helps with health milestones, legal documents, and personal reflection. This calculator also tells you your zodiac sign and the day of the week you were born. For more date tools, visit our Average Age Calculator.
Step 2: Extra Details
Age Calculation Method
We calculate the difference between the current date and your birth date, accounting for leap years and month lengths. The result is your chronological age. For more detailed time tools, see our Time Calculator.
Your Age
Your Exact Age
Detailed Age Metrics
| Metric | Value | Description |
|---|
Understanding Your Age
Chronological age is the time elapsed since birth. This is the standard age used in most contexts. Your next birthday countdown helps you plan celebrations! For more date tools, see our Date Calculator.
Next Birthday & Zodiac
| Item | Value | Details |
|---|
What Is an Age Calculator?
An age calculator is a simple tool that computes the exact amount of time that has passed since a given date of birth. It returns the age in years, months, days, hours, minutes, and even seconds. This is useful for birthdays, legal documents, health records, and more.
How to Calculate Age Manually
The calculation involves subtracting the birth date from the current date, adjusting for months with different lengths and leap years. The formula is:
For exact age in months and days, we use date difference algorithms that account for each month’s varying days. This calculator does all the heavy lifting for you.
Why Use This Age Calculator?
Our age calculator not only gives you the standard age but also provides a countdown to your next birthday, your zodiac sign, and the day of the week you were born. It’s the most comprehensive free age tool online. For more date-related tools, visit our Future Age Calculator .
Frequently Asked Questions About Age Calculation
How do I calculate my exact age?
Enter your date of birth and the calculator instantly shows your age in years, months, days, hours, minutes and seconds. It’s that simple!
What is the difference between chronological age and biological age?
Chronological age is the time since birth, while biological age reflects your body’s condition. This calculator gives chronological age. For health assessments, see our Health Age Calculator.
Can I calculate age in months and days?
Yes, this calculator shows age in years, months and days, as well as total months and total days for a complete picture.
What is the next birthday countdown?
The countdown shows the exact time remaining until your next birthday, in years, months, days, hours, minutes and seconds.
What is my zodiac sign based on birth date?
This calculator determines your zodiac sign based on the day and month of your birth. For example, January 1 is Capricorn. Learn more about zodiac signs on our Year Born Calculator .
Need More Time & Date Tools?
Explore our full collection of date calculators, including date difference, countdowns, and zodiac tools. All free and accurate.
Browse All Time Tools