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Pi Day
3.14159… and lots of pie.
…
days to go
All about Pi Day 🥧
Pi Day is March 14 — written 3/14, the first three digits of pi. It is a math holiday with a very convenient dessert pun attached.
Schools use it for pi-memorizing contests and circle experiments, and everyone else uses it as an excuse to eat pie.
How people celebrate Pi Day
- Eating pie (all kinds)
- Pi memorization contests
- Math games and circle measuring
- Celebrating at exactly 1:59 for 3.14159
Fun facts
- Pi has been calculated to trillions of digits.
- March 14 is also Albert Einstein's birthday.
- The US Congress recognized Pi Day in 2009.
The countdown above updates live in your own time zone, so the days, hours, minutes, and seconds always match your local clock.