Age Calculator
Age Calculator
Calculate your exact age in years, months, and days from your birth date. Also see how many days until your next birthday and how many total days you have been alive.
How It Works
The calculator counts the exact time between your birth date and today, accounting for leap years and varying month lengths to give precise years, months, and days.
About This Calculator
What It Does
Calculate your exact age in years, months, and days from your birth date. Also shows how many total days you've been alive and how many days until your next birthday.
Worked Example
Born on January 1, 1990: the calculator subtracts your birth date from today to show years, months, days, total days lived, and countdown to your next birthday.
Real-World Usage
Use for personal curiosity, filling out age requirements on forms, calculating retirement eligibility, or determining legal age thresholds for licenses, voting, or age-restricted activities.
Local Context
Age is calculated the same way everywhere — from birth date to current date. Some cultures count age differently (Korean age system starts at 1 and adds a year on New Year's Day), but this calculator uses the internationally standard birth-to-today method.
Frequently Asked Questions
Does this calculator account for leap years?
Yes. The calculator precisely accounts for leap years, giving you an accurate age regardless of whether you were born in a leap year or have lived through several.
How is age calculated in different cultures?
In most Western countries, age is counted from birth (your age increments on your birthday). In South Korea, a person is considered 1 year old at birth, and everyone ages one year on New Year's Day.
Can I calculate the age of someone who has passed away?
Yes. You can calculate the age someone would have been at any given date between their birth and today.