Past duration
Age Calculator
Find out exactly how old you are in years, months, and days.
Precise Any date Instant
What is an Age Calculator?
An Age Calculator is a tool that determines your exact age based on your date of birth. Unlike simply knowing your birth year, this calculator provides precise results including years, months, weeks, and days since you were born.
This is particularly useful for official documents, visa applications, insurance forms, and medical records where exact age matters. The calculator automatically accounts for leap years and varying month lengths to give you an accurate result.
Example: born July 14, 1990 → 35 years, 9 months, 6 days old today — broken down into weeks, total days, and the next birthday too.
How to Calculate Your Age
Using the Age Calculator is simple. Select your birth date from the calendar picker and click the Calculate button. The tool instantly computes your exact age and displays it in multiple formats.
The calculation considers the current date and time, leap years, and the exact number of days in each month. Whether you need your age in years for a form or want to know exactly how many days you've been alive, this tool provides all the information. Want to count down to your next birthday? Try the Birthday Countdown Calculator, or check what weekday you were born on with our Day of the Week Lookup.
Why Calculate Your Exact Age?
There are many reasons to know your precise age:
- Legal requirements – Age verification for voting, driving licenses, retirement benefits, and legal contracts
- Medical purposes – Healthcare providers often need exact age for dosage calculations and health assessments
- Insurance applications – Life and health insurance premiums are calculated based on exact age
- Travel documents – Visa applications and passport renewals require accurate age information
- Personal milestones – Celebrate knowing exactly how many days you've been alive
Frequently Asked Questions
How accurate is the age calculation?
The Age Calculator is highly accurate. It uses precise date arithmetic that accounts for leap years, varying month lengths, and your device's current date. The result is accurate to the day.
Does it account for leap years?
Yes, the calculator automatically handles leap years when calculating your exact age. If you were born on February 29th, it correctly calculates your age regardless of whether the current year is a leap year.
Can I calculate someone else's age?
Absolutely. Simply enter any date of birth to calculate that person's current age. This is useful for family records, employee databases, or any situation where you need to know someone's exact age.
What's the difference between age in years and exact age?
Your age in years is simply the difference between your birth year and the current year. Your exact age includes the months and days as well, giving you a complete picture of how long you've been alive.
How do I calculate my age in months or weeks?
Enter your date of birth and the calculator provides your age broken down into years, months, weeks, days, and even hours. For a dedicated week count, try our Weeks Since Calculator.
When is my next birthday?
After entering your birth date, the calculator shows your next birthday date and how many days remain until then. For a dedicated birthday countdown, use our Days Until Birthday Calculator.
What is my exact age right now?
Your exact age depends on the current date relative to your birthday. Enter your date of birth above to see your precise age in years, months, and days — accurate to today.