Age Calculator
Calculate your exact age in years, months, days, hours, and minutes from your birth date.
How the Age Calculator Works
Our age calculator determines your exact age by calculating the difference between your birth date and the current date (or any date you specify). The calculation accounts for leap years and varying month lengths to give you precise results in years, months, days, and even hours.
Knowing your exact age has many practical applications, from completing official documents to understanding life milestones and planning for the future. This tool makes it easy to calculate age precisely without manual counting.
Understanding Age Calculations
Age is typically expressed in years, but can be broken down into smaller units:
- Years: Complete years since birth
- Months: Remaining months after complete years
- Days: Remaining days after complete months
- Total days: All days lived since birth
Common Uses for Age Calculation
- Legal documents: Age verification for contracts, licenses, and applications
- Medical records: Precise age for health assessments and treatments
- Retirement planning: Calculate years until retirement eligibility
- Birthday milestones: Celebrations and age-related achievements
- School enrollment: Age requirements for grade placement
- Insurance: Age-based premium calculations
Age Milestones Around the World
Different cultures and legal systems recognize various age milestones:
- 18 years: Legal adulthood in most countries
- 21 years: Full legal rights in some jurisdictions
- 65 years: Traditional retirement age
- 100 years: Centenarian milestone
Fun Age Facts
- The average human heart beats about 100,000 times per day
- By age 30, you've spent about 10 years sleeping
- A year on Mars is 687 Earth days, so your "Martian age" is different
- Leap year babies (Feb 29) can celebrate their birthday on Feb 28 or Mar 1
Frequently Asked Questions
How do I calculate age manually?
Subtract the birth year from the current year. Then adjust for whether the birthday has occurred this year yet.
Does this calculator account for leap years?
Yes, our calculator properly handles leap years and varying month lengths for accurate results.
What if I was born on February 29?
The calculator handles leap year birthdays correctly. In non-leap years, you can celebrate on February 28 or March 1.