Pi Day 1925

Saturday, 14 March 1925

Pi Day is celebrated on 14 March in honour of the mathematical constant pi (3.14), with educational activities, mathematics events, and playful traditions such as eating pie.

Frequently asked questions

When is Pi Day 1925?
Pi Day 1925 is on Saturday, 14 March 1925.
What day of the week is Pi Day 1925?
It falls on Saturday.
How is Pi Day calculated?
This event is observed every year on 14 March.