Age Calculator
Calculate your exact age in years, months, days, and more precise time units
Calculate Your Age
Leave as today's date to calculate current age
Example Calculation
Sample Age Calculation
Birth Date: January 15, 1990
Current Date: September 6, 2025
Age: 35 years, 7 months, 22 days
Total Days: 13,018 days
Total Hours: 312,432 hours
Calculation Method
1. Calculate full years from birth year to current year
2. Adjust for months and days if birthday hasn't occurred yet
3. Count precise days, hours, minutes for exact calculations
4. Account for leap years in total day calculations
Age Milestones
Age Fun Facts
The average human lives about 27,375 days
You've lived through approximately 25 leap years if you're 100
Earth orbits the sun once every 365.25 days
Your heart beats about 2.5 billion times in 70 years
Health & Legal Disclaimer
This age calculator is for informational and entertainment purposes only. For legal documents, official age verification, or medical purposes, consult with appropriate professionals. Different countries may calculate age differently, and some legal requirements may have specific age calculation methods.
Understanding Age Calculation
How Age is Calculated
Chronological age is calculated by determining the time that has elapsed since birth. The most common method counts full years, then remaining months, then remaining days.
Leap Years & Precision
- •Leap years occur every 4 years (with exceptions for century years)
- •February has 29 days in leap years, 28 in regular years
- •Average year length is 365.25 days for calculations
- •Including birth time gives precise age to the minute
Different Time Units
Conversion Examples:
- 1 year ≈ 365.25 days
- 1 month ≈ 30.44 days (average)
- 1 week = 7 days
- 1 day = 24 hours
- 1 hour = 60 minutes
Cultural Variations
- •Western countries: Age 0 at birth, +1 each birthday
- •Korean system: Age 1 at birth, +1 each New Year
- •Chinese system: Similar to Korean but varies by region