Age Calculator

Forms, visa applications, school admissions, and official documents often need your exact age — not just the year. Enter a date of birth and this calculator works out the precise age in years, months, days, hours, and minutes, correctly handling leap years and month lengths.

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What the Age Calculator does

Age math sounds simple until you try it: months have different lengths, February grows a day every four years, and "borrowing" across month boundaries trips up even careful manual calculations. The calculator uses calendar-accurate logic, so the age it reports matches what official forms expect — the same approach used for documents that require exact age declarations.

How to use it

1Open the Age Calculator tool.
2Enter the date of birth (and, if needed, a target date).
3The exact age is calculated instantly.
4Read the breakdown in years, months, days, hours, and minutes.

Key features

✓Exact age in years, months, and days
✓Additional breakdown in hours and minutes
✓Handles leap years and varying month lengths correctly
✓Optional target date — calculate age at any point in time
✓Free, instant, and browser-based

Example use case

Example: a school admission form requires the child's age as of the academic year's start date, not today. Enter the date of birth, set the target date to the cut-off, and read the exact age the school will calculate.

Frequently asked questions

How is the age calculated?

Using standard calendar arithmetic — complete years first, then remaining months, then days — the same convention most official forms use, with leap years handled correctly.