This free age calculator tells you exactly how old you are in years, months, and days. It works out your chronological age — the precise time elapsed since your date of birth — and updates instantly in your browser. It also shows the total number of days you have lived, which is handy for counting milestones, planning birthdays, or satisfying simple curiosity.
The calculator works by comparing your birth date to today's date and carefully handling month lengths and leap years, so the answer is accurate rather than a rough estimate. Nothing you type is sent anywhere; the whole calculation happens privately on your device. You do not need to sign up, install anything, or pay.
How to use it
Tap the date field, pick your birth date, and read your age. Change the date any time to recalculate. You can also use it to work out someone else's age for forms, eligibility checks, or events.
How the age calculator works
The calculator finds your chronological age by counting the complete years between your date of birth and today, then the remaining whole months, then the leftover days. It carefully handles different month lengths and leap years, so the answer is exact rather than an estimate.
Example calculation
Born on 15 March 2000, checked on 19 June 2026: that is 26 years, 3 months, and 4 days — about 9,592 days lived.
Key features
Exact age in years, months, and days
Total days lived, useful for milestones
Works for any birth date, for yourself or others
Private, instant, free, and no sign-up
When to use it
Finding out exactly how old you are today
Checking age for forms, jobs, or eligibility
Counting down to a birthday or anniversary
Working out a child's age in months and days
Frequently asked questions
How does the age calculator work?
Enter your date of birth and it compares it to today to show your exact age in years, months, and days.
Can I calculate someone else’s age?
Yes. Enter any birth date to find that person’s exact age for forms, events, or eligibility checks.
Is it free and private?
Yes. It is free, needs no sign-up, and calculates entirely in your browser.
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