FREE ONLINE TOOL
Age Calculator
Calculate exact age in years, months and days from a date of birth.
Calculate your age
Choose your date of birth to get started.
0y 0m 0d
How It's Calculated
This tool calculates the exact calendar difference between your date of birth and today — years, months, and days — by comparing calendar dates directly rather than dividing total days by 365.25. That's why it correctly handles leap years and months of different lengths (28–31 days) without drifting over time.
Frequently Asked Questions
Why do different age calculators sometimes give slightly different results?
Most differences come from how months and leap years are handled internally. Some tools approximate using a fixed 30-day month or 365.25-day year, which can differ from the calendar-based result. This tool compares actual calendar dates.
Is this useful for eligibility criteria, like exam age limits?
It gives your age as of today's date, which is a useful starting point. Always check the exact “as on” cutoff date in the official eligibility notice, because official age calculations may use a specific reference date rather than today.
Can I calculate age for a future date?
This calculator accepts dates of birth up to today. Future dates are not valid dates of birth.
Does this calculator store my date of birth?
No. This standalone version calculates your age in your browser and does not send your date of birth to a server.