Age Calculator
Find your exact age in years, months, days, hours and minutes.
Age Calculator
Fast online calculation engine
Age Result Breakdown
What does Age Calculator do?
Enter a date of birth and get an exact age broken down into years, months and days, plus the same span expressed in weeks, days, hours and minutes. It also tells you the weekday you were born on and how long until your next birthday.
How to Use Age Calculator
- 1Enter the date of birthType or pick the date using the date field.
- 2Choose the comparison dateLeave it as today, or set a future or past date to work out age as of that day.
- 3Read the breakdownThe age and every alternative unit update instantly.
Key Features
- Exact age in years, months and days, counted the way a calendar counts it
- The same age restated in total weeks, days, hours and minutes
- Days remaining until your next birthday, with 29 February handled correctly
- The weekday you were born on
- Compare against any date, not just today, for legal and eligibility checks
Frequently Asked Questions
How is age calculated exactly?
The calculator counts complete calendar years first, then complete months, then the leftover days. That is the same method used on official forms, so 15 March 2000 to 14 March 2026 is 25 years, 11 months and 30 days — not yet 26.
What happens with a 29 February birthday?
In a leap year the birthday falls on 29 February. In a common year the calculator treats 1 March as the birthday, which is the convention most legal systems use for age of majority.
Does my time zone affect the result?
No. Dates are treated as calendar days rather than instants, so the answer is the same whether you are in Auckland or Los Angeles.
Can I calculate age as of a past or future date?
Yes. Change the "age on" date to any day. This is useful for checking eligibility cut-offs, school admission dates and insurance age bands.
Your data and files are processed strictly inside your browser. No data is stored, logged or uploaded to any server.
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