How to Use Age Calculator
1
Enter date of birth.
2
Set the "age at" date (defaults to today).
3
Click Calculate.
Features
✓Years, months and days breakdown
✓Total days, weeks, hours
✓Days to next birthday
Why Use This Tool
Verify age for legal requirements
Calculate age for applications and forms
Fun birthday calculations
Frequently Asked Questions
Can I calculate age on a past date?
Yes — change the "Age at date" field to any past date.
Is it accurate for leap years?
Yes, PHP's DateTime handles leap years automatically.