How to calculate the age?

Calculating someone's age requires knowing their date of birth and the current date. Subtract the person's birth year from the current year to determine the age. If their birth month and day have not yet occurred in the current year, subtract one year from the calculated age. It's important to ensure the accuracy of both the birth date and the current date for precise calculations. Taking into account leap years if necessary, this straightforward calculation helps determine an individual's age at any given time.