Pi Approximation Day

July 22, Monday

Pi Approximation Day
© ShutterStock

Pi Approximation Day is observed on July 22 (22/7 in the day/month date format), since the fraction 22⁄7 is a common approximation of π, which is accurate to two decimal places and dates from Archimedes.

Pi Approximation Day – days left: 55. Create Countdown to Event

Pi Approximation Day in other years

Pi Approximation Day in other countries

This site uses cookies. By continuing to use this website, you agree to our policies regarding the use of cookies.