Pi Day (3.14)
Celebrated on 3/14 to match the first digits of π (3.14159…), Pi Day honors mathematics with pie-eating contests, math challenges, and classroom fun.
1 min read · Fact-checked · Updated for 2027
About Pi Day (3.14)
Pi Day is observed on March 14th (3/14 in the month/day format used in the United States), corresponding to the first three digits of π (3.14). The day was first officially celebrated by physicist Larry Shaw at the San Francisco Exploratorium in 1988. In 2009, the U.S. House of Representatives passed a resolution designating Pi Day as a national day. Math enthusiasts celebrate by reciting digits of pi, eating pie, and attending math-themed events. March 14 also happens to be the birthday of Albert Einstein, making it doubly significant for science lovers.
Read more on WikipediaWhen is Pi Day (3.14)?
Pi Day (3.14) is celebrated every year on March 14. Upcoming dates:
| Year | Date | Day of week | |
|---|---|---|---|
| Pi Day (3.14) 2027 | March 14, 2027 | Sunday🎉 weekend | View date → |
| Pi Day (3.14) 2028 | March 14, 2028 | Tuesday | View date → |
| Pi Day (3.14) 2029 | March 14, 2029 | Wednesday | View date → |
| Pi Day (3.14) 2030 | March 14, 2030 | Thursday | View date → |
| Pi Day (3.14) 2031 | March 14, 2031 | Friday | View date → |
How to Celebrate Pi Day (3.14)
- 🎯Watch a documentary or read an article connected to Pi Day (3.14).
- 💡Visit a museum, planetarium or observatory — many hold events on this day.
- 📣Share a mind-blowing fact with #PiDay.
Official hashtag: #PiDay
Frequently Asked Questions
When is Pi Day (3.14) 2027?
Pi Day (3.14) 2027 is on Sunday, March 14, 2027.
How many days until Pi Day (3.14)?
There are 244 days until Pi Day (3.14) (March 14, 2027).
What category is Pi Day (3.14)?
Pi Day (3.14) is categorized as a Science event.
Is Pi Day (3.14) a public holiday?
Pi Day (3.14) is an observance day, not typically a public holiday. Check your country's official calendar for local public holidays.
More Science Days
International Day of Women and Girls in Science
February 11
A UN day promoting full and equal access and participation of women and girls in science, technology, engineering, and mathematics.
Fibonacci Day
November 23
11/23 — the first four digits of the famous sequence (1, 1, 2, 3).
World Meteorological Day
March 23
Marking the founding of the WMO — the science of weather, climate and water.
International Day of Human Space Flight (Yuri's Night)
April 12
Marking Yuri Gagarin's 1961 flight — the day humanity first left the planet.