What Year Are 14 Year Olds Born In 2025. Simply enter your age and get your birth year in seconds. Our year to age calculator is a simple tool that allows you to determine the age of a person based on their birth year.
To find the number of years since a date of birth or event, input the month, day and year in a cell in excel in mm/dd/yyyy format. Use the formula =datedif(a1, today(), y) to get age in number of years.