Using YEAR and TODAY Functions The formula `=YEAR(TODAY()) - YEAR(A1)` assumes cell A1 contains a valid birth date. Consistent formatting of the birth date column also ensures that all calculations behave predictably across the workbook.
Dynamic Age Calculation with TODAY Function for Real-Time Results
Whether you are managing HR records, building a medical database, or tracking membership durations, understanding how to derive age from a date of birth ensures your data remains current without manual recalculation. It is particularly valuable when you need to display age in invoices, certificates, or dashboards where clarity and detail are expected by end users.
Formula Example and Limitations An example formula is `=INT((TODAY() - A1) / 365. Practical Tips for Maintenance.
Dynamic Age Calculation with TODAY Function
Calculating a person's age from a birth date is a common requirement in spreadsheets, and Microsoft Excel provides several reliable methods to convert date to age accurately. While concise, this technique can still be off by a year near birthdays and does not provide month or day detail.
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