Find the birth date
Find the current date
Subtract the birth year from the current year
If the current month and day are before the birth month and day, subtract 1 from the result
The final result is the age in years
Find the birth date
Find the current date
Subtract the birth year from the current year
If the current month and day are before the birth month and day, subtract 1 from the result
The final result is the age in years