Age Calculator
Calculate your exact age in years, months, and days. Free online age calculator with next birthday countdown.
Date of Birth
Results
Enter a birth date to calculate age.
How to Use
1️⃣
Enter Birth Date
Select your date of birth.
2️⃣
Choose As-of Date
Defaults to today. Change to calculate age on a past or future date.
3️⃣
See Your Age
Get exact years, months, days, and next birthday countdown.
Frequently Asked Questions
How does this age calculator work?
It calculates the difference between your birth date and the selected as-of date, breaking it down into years, months, and days while accounting for varying month lengths.
Can I calculate age for a future date?
Yes. Change the "As of Date" to any future date to see how old you will be then.
Is this age calculator free?
Yes, completely free. No signup, no limits, and your data never leaves your browser.