Pi Day 2015

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 2015?

Pi Day 2015 is on Saturday, 14 March 2015.

What day of the week is Pi Day 2015?

It falls on Saturday.

How is Pi Day calculated?

This event is observed every year on 14 March.