- Add 18 to your birth month.
- Multiply by 25.
- Subtract 333.
- Multiply by 8.
- Subtract 554.
- Divide by 2.
- Add your birth date.
- Multiply by 5.
- Add 692.
- Multiply by 20.
- Add only the last two digits of your birth year.
- Subtract 32940 to get your birthday!.
Example: If the answer is 112591 means that you were born on November 25, 1991. If the answer is not right, you followed the directions incorrectly or lied about your birthday.