Currently (Sept 2014), the number of digits is 10 trillion (and fifty).
pi is currently at 4 million digits
Alexander J. Yee and Shigeru Kondo have calculated 10 trillion digits of Pi.
Pi was calculated to 10 trillion digits on October 17, 2011.
Never. Pi is known as an "irrational number" - it can be calculated to arbitrary digits, but there is no pattern to it.
Because Pi is known to be an irrational number it means that the digits never end or repeat in any known way. But calculating the digits of Pi has proven to be an fascination for mathematicians throughout history. Some spent their lives calculating the digits of Pi, but until computers, less than 1,000 digits had been calculated. In 1949, a computer calculated 2,000 digits and the race was on. Millions of digits have been calculated, with the record held (as of September 1999) by a supercomputer at the University of Tokyo that calculated 206,158,430,000 digits. (first 1,000 digits). However, learning 3.141, is all that is necessary. But you can go on and on, to infinity, and never find the exact circumference of a circle. I have only memorized 205 digits of pi; and yes I do use it to find the circumference of a circle.
pi has not yet been calculated to that degree of precision.
Isaac Newton got up to 16 digits of pi when using his method or he calculated 3.1415926535897932
the current record for decimal places that pi has been calculated to is 1,241,100,000,000 THIS IS MORE THAN A TRILLION * * * * * As of 17 October 2011, the answer is 10 trillion.