How to Calculate Exact Age in Years, Months and Days

Exact age is needed for exam eligibility, government schemes, insurance and pensions, where cut-offs are often "as on" a specific date.

Step by step

1. Subtract the birth year from the reference year.
2. If the birthday has not yet come in the reference year, subtract one year.
3. Count the remaining months, then the remaining days, borrowing days from the previous month when needed.

Example

Born 15 June 1988, age as on 7 November 2026: 38 years, 4 months and 23 days.

Tips

• Always use the "as on" date given in the notification, not today's date.
• Leap-year birthdays (29 February) are usually counted on 28 February or 1 March depending on the rule used.

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Last updated: 2026-11-07