Chronological Age Calculator
Calculate your exact age in years, months, days, hours, minutes, and seconds
Calculate Chronological Age
Enter your birth date or the date when something began
Default is today. Change to calculate age at a specific date
Example Age Calculations
Example 1: Personal Age
Birth Date: March 2, 1999
Target Date: May 6, 2025
Result: 26 years, 2 months, 4 days old
Example 2: Company Age
Founded: September 4, 1998
Target Date: Today
Result: Calculate how long your business has been operating
Example 3: Historical Event
Event Date: July 20, 1969 (Moon Landing)
Target Date: Today
Result: Calculate how much time has passed since a historical event
📊 Types of Age
🌍 Life Expectancy Facts
💡 Calculator Tips
Calculate age at any point in time
Perfect for legal documents and records
Accounts for leap years automatically
Shows time in multiple units
Calculate company or project age
Understanding Chronological Age
What is Chronological Age?
Chronological age is the amount of time that has passed since birth, measured in years, months, and days. It's the most common way to measure age and is used for legal purposes, medical records, and official documentation.
Calculation Method
Our calculator uses precise date arithmetic to account for:
- •Leap years (every 4 years, with exceptions)
- •Varying month lengths (28-31 days)
- •Exact day-by-day progression
Applications
- •Legal documentation and contracts
- •Medical records and health assessments
- •Insurance and financial planning
- •Educational enrollment and requirements
- •Business and company anniversaries
- •Historical event analysis
Accuracy: This calculator provides precise chronological age calculations suitable for official and legal purposes.