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Pi Day 2025
March 14, 2025 in the World
A pi character generated by LEDs.
Copyright: Brian Katt, license: GNU FDL
Pi Day and Pi Approximation Day are two unofficial holidays held to celebrate the mathematical constant π . Pi Day is celebrated on March 14, or in the month/day date format as 3/14; since 3, 1 and 4 are the three most significant digits of pi.
We have placed a detailed description of this event on this page: Pi Day 2026. For further information please stop by there!
Where is the event?
Worldwide
World
When is the event?
Friday, the 14th of March 2025
Over since 11 days!
More dates:
- Pi Day on Mar 14, 2026
- Pi Day on Mar 14, 2027
- Pi Day on Mar 14, 2028