Celebrate Pi Day and read all about how this number pops up across math and science on our special Pi Day page. Grab something circular, like a cup, measure the distance around the circle, and divide ...

Google Doodle 2026: Google is marking March 14 with a special Doodle dedicated to Pi Day 2026. It's an annual shout-out to the world's most famous mathematical constant, π. Google stated it was ...

Pi Day is observed every year on March 14, marking the significance of the mathematical constant π (pi). The day is commemorated by mathematics enthusiasts around the world in recognition of the ...

Add Yahoo as a preferred source to see more of our stories on Google. Circle the date! Today is Pi Day for 2026! Today is Pi Day for 2026, the universal celebration of an amazing, mysterious, and ...

This day only comes 'round' once every year! Today is Pi Day for 2026, the universal celebration of an amazing, mysterious, and irrational mathematical constant. What's that, you say? Why do we ...

Pi Day is celebrated every year on March 14 to honour the mathematical constant (pi). The date 3/14 matches the first three digits of the value of pi, which is approximately 3.14. The day is widely ...