Age Calculator
Calculate your exact age in years, months, and days. See how many days you've been alive and find out when your next birthday is.
How It Works
Enter your date of birth using the date picker. The calculator instantly computes:
- Exact age broken down into years, months, and days
- Total days alive — the total number of days since your birth
- Total weeks and months you've lived
- Next birthday countdown — how many days until your next birthday
The calculation handles all calendar complexities including leap years and months with different numbers of days.
Frequently Asked Questions
How does the age calculator work?
The age calculator computes the exact difference between your date of birth and today's date, breaking it down into years, months, and days. It also calculates your total days alive and counts down to your next birthday.
Does this account for leap years?
Yes, the calculator uses JavaScript's native Date object which correctly handles leap years, varying month lengths, and all calendar irregularities when computing age differences.
Can I use this to calculate someone else's age?
Absolutely. Simply enter any birthdate to calculate the age for that date. It works for any date in the past.