Utilz
Age Calculator
Calculate your exact age in years, months, and days
Want to learn more? Read our guide: Age & Date Calculation Methods
Why Use This Tool?
- Find your exact age in years, months, and days without manual counting.
- Useful for filling out official forms, visa applications, and age-restricted registrations.
- Accounts for leap years and varying month lengths automatically.
Formula
Age = Current Date - Birth Date. The calculator computes the difference in complete years, remaining months, and remaining days. For example, if born on 1990-03-15 and today is 2026-03-05: Age = 35 years, 11 months, 18 days.
How to Use
- Select your date of birth
- Your exact age is calculated instantly
FAQ
How is the exact age calculated?
The calculator computes the difference between your birthdate and today, accounting for varying month lengths and leap years.
Does this account for leap years?
Yes, the calculation uses the JavaScript Date API which correctly handles leap years and varying month lengths.
Can I calculate the age of someone who has passed away?
This calculator computes the difference between a birthdate and today. To calculate age at a specific date, use the Date Calculator tool instead.
What is the difference between Korean age and international age?
Korean age counts from 1 at birth and adds a year every January 1st. International age counts from 0 at birth and adds a year on each birthday. Korea officially switched to the international system in 2023.
How do I calculate age in months?
This calculator shows your age broken down into years, months, and days. For total months, multiply the years by 12 and add the remaining months.