Age Calculator
Find your exact age in years, months and days, plus the weekday you were born.
Tip: the result updates instantly. The link in your address bar is shareable — anyone opening it sees the same dates.
How it works
Age = current date − birth date, borrowing days/months across month and year boundaries.
Example: born 15 Jun 1990, today 10 Aug 2026 → 36y 1m 26d.
Frequently Asked Questions
How is my exact age calculated?
The calculator counts full years, then full months, then the remaining days between your date of birth and the 'age on' date. This is the same way age is counted in most official records.
Why does my age in months and days not match other sites?
Some tools use an approximate month length of 30 days. TrueCalculator counts actual calendar months and days, so results are exact.
What if my age-on date is before my birthday?
The tool will show an error and ask you to choose an age-on date that is on or after your date of birth, since age cannot be negative.
How do I share my age calculation with someone?
The link in your address bar already contains your dates. Copy and share it — anyone who opens it will see the same result instantly.