Birthday Facts
Enter a date of birth to get a bundle of fun facts in one place.
About this calculator
This birthday facts combines several of the calculators on this site into one quick snapshot: the day of the week someone was born, their Western zodiac sign, Chinese zodiac, birthstone, total days alive, and next birthday date.
It's a fun way to learn a handful of interesting details about any birthday at once, without visiting several separate calculators.
How it works
Enter the date of birth
Any valid date works.
Calculate
The tool runs several calculations at once.
Browse the facts
See weekday born, zodiac sign, Chinese zodiac, birthstone, days alive, and next birthday.
Frequently asked questions
Where do these facts come from?
Each fact uses the same calculation methods as the dedicated calculators elsewhere on this site — see the zodiac, birthstone, and age-in-days pages for more detail on each.
Can I get more detail on one specific fact?
Yes — use the dedicated calculator for that topic (zodiac sign, Chinese zodiac, birthstone, or age in days) for a deeper breakdown.