When you are XX years old in a certain year, the year you were born is calculated and displayed before and after your birthday.

Calculate the year you were born from the age of a certain year.

If you want to calculate the year you were born from the current age, you can calculate it with "Calculate birth year from age".

Enter the year you are XX years old and click the "Calculate year of birth" button to display the year of birth whether or not your birthday has already come in that year.

You can also easily check the Sexagenary cycle year of birth and the age chart.