Tool Description

Free Online Age Calculator – Instantly calculate your exact age in years, months, weeks, and days. This easy-to-use tool helps you determine your age from your date of birth to any specific date. Whether for personal use, official forms, or age-based eligibility checks, our accurate age calculator provides a detailed age breakdown with just one click.

 How to Use the Age Calculator Tool

1. Select your Date of Birth using the calendar input.
2. Choose the ‘Calculate Age As Of’ date (defaults to today).
3. Click the “Calculate Age” button.
4. Instantly view your age in:
   1. Years
   1. Months
   1. Weeks
   1. Days
   1. Total Days

 Tip: You can press the Enter key after selecting dates to quickly run the calculation.

 How This Tool Works

The tool uses the JavaScript Date object to:

• Capture your Date of Birth and the target date for the age calculation.
• Compute the time difference in milliseconds.
• Convert the result into:
  • Total days (by dividing milliseconds by 86,400,000)
  • Years (based on 365.25 days/year to account for leap years)
  • Months (approx. 30.44 days/month)
  • Weeks and remaining days

It dynamically updates the results on-screen in a user-friendly breakdown.