Age Calculator – Calculate Age from Birthdate
Find out your exact age in years, months, and days.
About this tool
Calculate your exact age in years, months, and days with our free age calculator. Simply enter your birth date, and optionally a second date (like today or a future event), and the tool instantly tells you how old you are. It accounts for leap years and month lengths, giving accurate results. Whether you're filling out forms, planning a birthday, or just curious, this calculator is handy. It also shows the total number of days you've been alive. No personal data is stored – everything is computed in your browser. Use it for yourself, your children, or even historical figures. Fast, accurate, and free.
Frequently Asked Questions
Does it account for leap years?
Yes, the calculation correctly handles leap years and the varying lengths of months.
Can I calculate age on a specific date?
Yes, you can use the 'As of Date' field to choose any date. If left blank, it uses today's date.
What if I was born on February 29?
The calculator will treat non‑leap year birthdays as March 1, which is the common convention.