About Birthday Decoded
Everything your birth date says about you.
Birthday Decoded brings together everything connected to your date of birth: your exact age, the day of the week you were born, your zodiac sign, Chinese zodiac animal, generation, numerology life path number, birthstone, birth flower, and the famous people who share your birthday.
How it works
Every calculator runs in your browser. Your birth date is never sent to us or stored on our servers. It is only remembered on your own device so you don't have to type it again.
Where the information comes from
- Famous birthdays come from Wikidata, a free knowledge base. People are ranked by how many language editions of Wikipedia have an article about them.
- Generation ranges follow Pew Research Center for the Silent Generation through Gen Z, and widely used definitions for Gen Alpha and Gen Beta.
- Chinese New Year dates are calculated from the Chinese lunisolar calendar for every year from 1900 to 2099.
- Birthstones follow the modern list published by the American Gem Society and Jewelers of America.
Zodiac signs, Chinese zodiac traits and numerology come from cultural and traditional belief systems. We share them for fun, not as scientific predictions.