How common is a December 21 birthday?
December 21 ranks 55th out of 366 days, averaging 11,727U.S. births per day between 1994 and 2014 — that's 85.2% more common than the rest of the calendar. More babies arrive on your day than on a typical day of the year.
- Rank
- 55th / 366
- Avg. daily births
- 11,727
- More common than
- 85.2% of days
- Zodiac
- Sagittarius
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December 21 ranks 55th out of 366 days, with an average of 11,727 births per day. More babies arrive on your day than on a typical day of the year.
Based on a typical 40-week pregnancy, you were likely conceived around March 16.
The days around it
Famous people born on Dec 21
- Samuel L. Jackson · b. 1948actor
Classic
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Every cell is one day of the year — yours is outlined.
More about December 21
- Roughly 246,267 people across the U.S. share this exact birthday, based on 21 years of records.
- Babies born on this date were most likely conceived around March 16.
- This is day 356 of the year — 55th out of 366 for birth frequency.
- The sign is Sagittarius, one of the twelve zodiac signs tracked across the full calendar.